Thumbs Up for Rock and Roll!

If my little boy turns out half this hilarious, I am in for it.

Help!

I am in a desperate situation with this nursery. I have ordered some fabric swatches to get an idea of what I want, but it is proving a little bit difficult to do this in a nursery with purple walls that we cannot paint. Here are my choices:

These are the swatches that Joe chose to narrow it down to:

So what are your suggestions, if any, to make a purple nursery more manly? I am desperate here.