Cut the top of a crew sock off. Turn sock inside out, attach a rubber band to top of the sock. Turn sock right-side out again. Fill with rice. Pack it down to make a round base. Rubber band the top of the sock closed, another band for head. Now, decorate!
Okay, these are made of shiny glass; but beach glass is often roughly triangular, so why not go for a beach glass tree ornament? A trio of red tree ornaments for your Christmas tree or to tie on to gifts and use as tags.