Around what size are you talking?
hm.... 'writhing' tentacles could me made cheaply with a simple slow motor and some bent wire......
...yadda yadda yadda
Foam rubber can be found at a number of places-- the most accessible would be at Jo-Ann's, among the pillow stuffings. They use it for couch cushions and the like. I might buy an inch thick sheet of it and roll a piece into a cone (hot glue should hold it)thanks people. mr chicken i think you got the right idea but where would there be a good place to purchase that kind of latex that can be manipulated like that.?