We had a d20 in mix last year. It ended up in group of fantasy stuff (mostly Tolkien). Seventh from the left:
It's a bit easier to see in the background of this shot:
I am not at all good at the visual arts, but I tried carving a beholder-pumpkin last Halloween:
We put "Roll Initiative", a series of dice (I wussed out a bit on the D12 and didn't bother going for the D20), and a beholder in this year's collection. Nothing as fancy as some of the beholders above, but we're going for quantity instead.