All these materials can
make custom stamps.
Draw the design on paper
before beginning. To use potatoes cut the potato
in half (lengthwise or crosswise). Draw the
design on the exposed part of the potato. Carefully
using a knife carve about ¼” down. Carve
away the part of the potato not in the design.
The rest of the potato serves as the handle.
Throw away when finished using. Foam sponges
of all sizes can be used to make stamps.
Simply cut the sponge in the shape wanted for
the stamp. Rinse out after use and allow to dry
before storing. Different densities of sponge
pores will create different effects. Styrofoam
can also be used, but tends to crumble with
more detailed shapes. Foam shapes can also be
cut out, or the pre-made foam stickers can be
attached to small wood blocks to stamp.