I love to crack every joint in my body, and some places that aren't joints.
elbows (I can hyper-extend them, which makes popping them great!)
When we were little, my sister and I used to pull each others' toes to pop them. It was awesome.
(Is that weird?)
With regards to the toe-cracking thing - no it is not weird.
If you have a look around the forums you will see many people like to get others to crack joints that they can't and in some senses it increases the satisfaction because you aren't doing it yourself so you can indulge in the sensation for the whole feeling.