Go to I Work & Play, 1308 8th Street, Suite 1 in West Des Moines. They have our logos for DMSFS and DemiCon. Chose your wardrobe item and then they will add the logo you choose. Cost is of the clothe item and $15 printing or embroidery fee. T-shirts range from $3 and up. They also have caps, polos, bags, lab coats and the list goes on.
We do have the DMSFS table at DemiCon where you can purchase items as well.