I read somewhere here about someone making a dildo using a paper towel cardboard tube, a large condom and some silicon. I am going to try that with a tube of kitchen and bath caulking. If it works out I have an idea for a more rigid one. I am going to insert an industrial strength twist tie into the condom before the caulking sets up. You can buy these at any hardware store. The tie should make the dildo bendable. I might even try to make one with PL400 lumber glue. This one should be very rigid when it sets up. As for a butt plug I was thinking of put either caulking or silicon into one of those Kong dog toys, then cut the toy away after the caulking sets up. If any of these ideas work out I will post some pics.