Here's the messiest one (we promise). For this one we used about 1.5-2 cups of flour. We spread the flower in an even layer across the table, then laid our elf in the middle of the flour. We then pushed his legs and arms from side to side, to mimic the movements made when creating a snow angel. Afterwards we posed the elf nearby so that the children would find him.
Elf on the Shelf Ideas