Th ones I have seen inthe dollar shop I know others have carved successsfully. The concern I have is that the pre-cut handle line would show pretty dreadfully, not to mention falling out at an inopportune time.
Here's some on ebay http://search.ebay.com/boogie-board_W0QQfclZ4QQfnuZ1QQfsooZ1QQfsopZ3
The wrist strap pops off (not a good thing to happen when using them! ) and leaves a whole that could be patched easily. Must admit, the shape is good and since many are covered in cloth it would be an easy transformation to tombstone!
Can't believe I didn't think of this before!
We must have at least 4 that are unusable and just lying around.
I was looking at one of those plastic basketball posts the other day, and the backstop that the net attaches to sure looked like a large tombstone to me. If you could find one that isn't curved it would make a nice start for a large 'stone.
I picked up 3 kickboards and a boogie board at the end of a yard sale a few weeks ago - from the FREE box. Couldn't pass them up. Haven't done anything with the boogie board other than removed the strap and connector. The kickboards have been painted and are standing in the backyard next to the pond I'm digging. My partner's mom was here for Sunday and asked if I was digging a grave. Will post some pictures.