You can also find shallow wooden containers at places like Dollar Tree, IKEA, and Michaels for a bargain. Or get packs of six Unfinished Wood Trays from Amazon.

Treating Unfinished Wood. By Tatiana Morales. July 14, 2004 / 1:19 PM EDT / CBS ... That is not a good piece of wood. The problem with knots is that they loosen and fall out.