How is that possible to make that sausage crab and teach me.

For the feet you'd just have to try an cut the hot dog and not cut all the way through an use the skin or cut right before it an try an save it that way.
then two smaller hot dogs cut into claws added with toothpicks.
probably easier said than done, but might try it an post results

BakaKami said:
How is that possible to make that sausage crab and teach me.

Here's an illustrated tutorial.