Polymer Clay

Fimo and clay tips and tutorials

Polymer Clay Safety – reassuring words from the Doc!

by

By DocSarah

By DocSarah

Doc Sarah is the self-described “Guild Cheerleader and Web Tinkerer” for the PAPCG (Philadelphia Area Polymer Clay Guild) and as her username indicates, a medical doctor.   Recently, in a discussion about the safety of polymer clay, and concerns over the fumes released when it burns, she had this to say:

“The fumes of burning clay are an airway irritant. (The burning generates a low level of hydrochloric acid in gaseous form.) Basically that’s a fancy way to say the fumes stink and cause irritation. It is short lived. Of course children have smaller airways and may be more sensitive so it’s a good idea to keep up the ventilation to dilute the air. (if there is a risk of burning.) But don’t worry, there is no hidden toxic effect or delayed issue. If you don’t have any problems now, you won’t have any. Furthermore, if there is any irritation, when it’s gone it’s gone. You can’t take a product certified non-toxic and do anything to it to make it toxic. Burning will make it an irritant, but NOT a toxin per se (using medical definitions.)”

Doc Sarah is a helpful and sensible voice on the Polymer Clay Central forums, and she would probably want me to remind you that it is a good idea to wear some sort of dust mask when working with any mica powders or other particulate matter.  That will keep your lungs happy and smiling like the ladies she made from her first face cane!  (pictured above – she gives Barbara McGuire credit for helping her over come her face cane fears!)

Visit the PAPCG Guild’s blog at: http://papcg.wordpress.com/

Comments

Have you read?

DIY Sushi Bowls and Ceramic Chopsticks with Koi Wave Pottery Transfer Paper

If you’ve ever wanted to bring a touch of Japanese artistry to your tableware, this project is the perfect place to start. Using koi wave pottery transfer paper, you can transform plain clay pieces into elegant sushi bowls and matching ceramic chopsticks—handmade, functional, and beautiful.

This beginner-friendly guide will show you how to apply ceramic transfer sheets to create a set that looks store-bought but carries the warmth of handmade craftsmanship.

Materials You’ll Need

  • White stoneware or porcelain clay (cone 5–6 recommended) 
  • Koi wave ceramic pottery transfer paper (as shown above) 
  • Rolling pin or slab roller 
  • Bowl molds (small curved molds or slump molds for sushi bowls) 
  • Wooden chopstick dowels or ceramic chopstick molds 
  • Scissors 
  • Sponge or damp cloth 
  • Rib tool or rubber kidney 
  • Clear glaze 
  • Kiln

Step 1: Prepare Your Clay

  1. For the bowls – Roll out clay slabs about ¼ inch thick. Drape over a bowl mold or press into a slump mold to create your sushi bowl shape. Smooth edges with a damp sponge. 
  2. For the chopsticks – Roll clay into long, even strips (or press into chopstick molds if you have them). Aim for a slim, uniform thickness so they feel comfortable to hold. 

Let all pieces firm up to leather-hard stage—firm but still damp enough to accept transfers.

Step 2: Cut Out the Transfer Designs

Trim sections of the koi wave transfer paper to fit your pieces. For bowls, you can cut circular panels or strips depending on whether you want the design inside, outside, or both. For chopsticks, cut narrow strips of transfer paper that can wrap around each stick.

Tip: Think about placement—the flowing wave design looks especially striking when it wraps around curved surfaces.

Step 3: Apply the Transfer Paper

  1. Place the transfer sheet design-side down on the leather-hard clay. 
  2. Lightly dampen the back of the paper with a sponge until it darkens and sticks. 
  3. Smooth gently with a rib tool to ensure full contact. 
  4. Carefully peel back the paper to reveal the koi wave design. 

Repeat until all bowls and chopsticks are decorated.

Step 4: Dry and Bisque Fire

Allow all pieces to dry completely. Bisque fire according to your clay’s temperature guidelines (usually cone 04 for bisque). This firing will lock in the koi wave design.

Step 5: Glaze and Final Fire

Brush or dip in a clear glaze to seal the transfers, bringing out the rich blue detail while keeping the white clay background crisp. Fire to your glaze cone temperature (typically cone 5–6).

The Finished Set

You’ll have a handmade sushi set featuring:

  • Mini sushi bowls – perfect for soy sauce, dipping, or small side dishes. 
  • Matching ceramic chopsticks – elegant and reusable, finished with koi wave patterns. 

Tips

  • Keep chopsticks uniform in thickness so they balance well in use. 
  • Test the transfer on a scrap piece first to gauge how much water is needed. 
  • Try mixing placement—inside bowl only vs. outside vs. full wrap—for variety. 
  • Consider making a full set: 4 bowls + 4 pairs of chopsticks for a complete handmade sushi dining experience. 

This koi wave pattern brings both serenity and elegance to your handmade ceramics. The deep blue waves paired with koi fish designs make each piece feel timeless—perfect for special meals, gifting, or even selling as artisan tableware.

Creating your own sushi set allows you to blend functionality with artistry—every bite of sushi becomes part of a beautiful, handmade ritual.