1) Fabric Banner - This would be a simple sewing DYI, and you can use all those extra fabric pieces! Alternatively Baby Bump has a great selection...
|Baby Bump Bedding|
|Via - Here|
3) This one is a bit far fetched (aka more work and skill), but because I love wood walls. I was trying to create accent wood wall. This one is adapted from the talented Vintage Revivals who used this technique on her trailer floor. I would see attaching this wood pattern to a thin piece of plywood and then attaching the plywood to the wall. I think a narrow column of this would look great and not overpower the room!
|Via Vintage Revivals|