ID bases itself on the idea that a creator created us because we are so 'perfect.'

My question is, why did he give us vestigial organs and body parts (Basically, useless ones).

For example...
The Appendix
The coccyx
Wisdom teeth
Male Nipples

Would someone explain 'god's purpose' for including these oh-so-useless organs? Or, perhaps, they used to have a use (some of them), but due to evolution, they are now unnecessary?