Craftgawker | look to inspire. Plastic Smithing. Collect all the plastic bags you can get, they shrink down a lot.Shredding them will make your final texture finer. Use an old pot that you aren't going to use for food any more, or get one secondhand for really cheap at a thrift store. Find a stick or something else you can use for a spatula. I liked the clothespin a lot because I could pick things up as well as stir.
Oh, and oil! So grab your favorite oil, here's why: Plastic bags are made of LDPE (low density polyethylene) which melts at 248 F. I got the temperature wrong and tried doing this in a homemade double boiler filled with water (to regulate the temperature to water's boiling point), which, of course, just made hot plastic bags. After the double-boiler mistake I re-read the LDPE melt-point and discovered my folly!
If you wanted a smooth, non-oily finished surface, consider using wax instead.
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