Evidently there are sites where you can create your own buttons.
Here is my button and my belly button. Yes, this is really a link to my belly button. Every time you push it,. it makes me feel weird.The link goes to the site that helped me create it, but it is really all about how the cursor changes.
Edit: I posted this really quickly, because I had to rush my kid off to swim practice.
Here are some more links:
Steal These Buttons!
Brilliant Button Maker
Thanks omninaif and Helen for turning me on to these sites!