it would be really nice to see a toy designed for overnight use like The Slip Knot in silicon.. I think The Trainer would work good for that (though on the large side) if it were given an option to have a narrow base. The wide base on the Euro Ruff Stuff is able to fold together, but it still gives a decent pull back that makes the toy hard to keep in once stretched to take the knot.
I agree. I loved the shape of the base on the original slip knot and if it was offered with a larger knot in silicone I'd be all over it.