My boyfriend loves the Tenga Eggs. He said the only downside is the fact that they don't last very long as they are intended for single use. But he loves them.
I think the monster looking one is cute, I asked my fiance if he'd use it and he said sure, why not? The Tenga ones are one time use, I wouldn't waste money on them.
Tengas are the best I feel because of the variety of textures, and though they are meant to be disposable you can actually clean and reuse them more than once.