I bought some jeans for Mr Riley from the thrift store a while back. They turned out to be too small, and a broken zipper - so after moving them around for a while, and desiring a quick & easy project, I whipped out some pants for WP.
I used Simplicity 4833. Out of publication now. Why this one? I used the same pattern for the flannel PJs. It was already cut - and its the kind of pants pattern that only has one piece. No side seams!
I took off the original back pockets and moved them to the side.
And sure, they're a little long. But what's the point of making something if they can only wear it for 2 weeks before they grow out of it.