I took my girl bumper and transformed it into a BOY bumper by simply making a slip cover for it.
Not only did it turn out so much cuter then any store bought bumper (I just couldn't find anything I liked) I also saved myself a TON of $$$ in the process. I refused to buy one of those crib sets. I could not believe how expensive those things are now. I bought this bumper for less then $15 at Target 5 years ago....good luck finding anything like that now :) boo.
Here is a sneak peak at the fabric:BEFORE: cute girly flower bumper
AFTER: handsome boyish robot bumper
**tip to save you even more $$$ When you go to cut your fabric, keep in mind that most fabrics are around 44" wide so you can use that width as the length of your strips. Use the width of the strips as a guide as to how many yards of fabric you need. (I was able to cover my bumper using just over 3 yards of fabric by doing this) So in other words, you can get 3 strips of fabric that are 44' long and 11" wide out of ONE yard of fabric which then gives you around 132" of length for your strips. See where this can save you $$$?!?! Make sure to add a few extra inches for the amount you will loose when sewing your smaller strips together.
I love this idea for the fact that it only cost $9.00 to make it, and I didn't ruin my original bumper. I hope this helps and that it does not sound to confusing. It totally spaced me to take pictures of the process until it was to late :) boo.