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Put a little scientific cheer into your holiday season with an IgM pentamer Christmas tree ornament! This handmade pottery ornament is about 3cm (1.25") in diameter and comes strung on a fine brown hemp cord. Decorated on one side only, back face left unglazed. Gift boxed for for easy gifting.

The Immunoglobulin M pentamer is a critical component of animal immune systems, and is the body's first responder to immune challenges. It also looks fantastic on a pine tree!

Frequently asked questions about theVexedMuddler

If you'd like a different cord or clasp on any of my ready-to-ship items, please contact me before buying. Extra material charges may apply in some cases.

Fully customized items such as new designs or different shapes and colours for existing designs take 3-5 weeks to create. Please leave plenty of time, and let me know if you have a deadline!
All of my ceramic jewellery comes in a cute little box with tissue paper inside, ready for easy gifting. Just add a card and a bow!
Ceramic is generally pretty tough stuff, but it can chip if it's bashed against hard surfaces repeatedly, and it doesn't enjoy being dropped on tile floors. Harsh chemical cleaners can damage leather, hemp, and cotton cords. I've designed my items to withstand my rough and busy workday, so if you treat your Vexed Muddler original with just a little bit of kindness, you'll get years of wear out of it!

Small Christmas ornament, IgM antibody pentamer, ceramic holiday ornament for science geeks


  • Handmade item
  • Materials: pottery, earthenware clay, ceramic, glaze, hemp cord
  • Ships worldwide from Canada
  • Feedback: 157 reviews
  • Favorited by: 14 people