Our Undertale cosplays!

My sister and I wore these recently at a local convention, me filling the role of Alphys and my sister as Sans. (My Alphys DOES have a tail, but it's not viewed at this angle. The only shots I have of the full side view unfortunately include pictures of maskless cosplayers.)

Alph's mask is made of high-density foam, fabric, and orange paint. Her tail (not seen) is also made of foam that I'd rolled up and glued together, wrapped up in yellow fabric. It's sewn onto the body, which makes sitting difficult. But the effect is worth it!