What shape toys do you enjoy?

As I sit here on a baseball (in a baggie, lubed) I'm wondering what shape toys turn you on?

It wasn't until I tried a fist shaped one that I got thinking of this.

For example, the round ball pushes me open as i roll back and forth on it, getting me loser with every move. The fist was most stimulating when I inserted it in different orientations or twisted it around once inside of me.

What about you?

I like a nice, fat tapered buttplug to start getting opened up.

I also like to take one of those plastic bags that newspapers come in and use them to pop different size balls in my ass. So far the best are Lacrosse balls ~2.5" dia. I'm not sure I'd like a baseball, the stitching seems like it would be uncomfortable.

I also like riding a nice fat dildo.