Thank you Caryn. I might try glueing a non-slip bathtub pad to the board. Also, good idea about the chain.
caryn lavender said:
They have this stuff that comes in a roll with a sticky backing...it's used for stairs and such to prevent slipping...or how about those stick on rubber things that go on the bottom of a bathtub or shower so you don't slip.
I will also post a video or something after it's complete...
I was also considering using chain against the license plates...like a snare sound.