I've thought about trying to make my own worms, lizzards, and Senkos, but I was wondering if it was cheaper to just go to BPS and buy them.  Is it cheaper to make you own or buy name brands?  What is the difference in price?  Also, how much does it take to get started in pouring plastics?

The more you use that you make, the cheaper it becomes per worm. Of course, some designs might not come out as pretty as injection mold plastics, but there are many designs that come out great from just a plaster or resin mold.

If you figure in s/h, tax, gas, backorders etc, making you own saves time and money once you get past the first season of not buying or using other people's plastics. Instead of paying over $.60 for Senkos, you can make one for around a dime. (3 cents for plastic, less than a penny for salt, 6 cents for running a hot plate, 1 cent for glitter/dye and maybe a penny for softener.)

With aluminum molds, sticks are almost perfect, but with plaster or silicone, work well even though one side is almost flat.