I'm not sure I have enough snaps to do them but it looks easy enough. When the velcro is unpicked you'll still be able to se where the stitching was - they never look quite as good as an original popper one IYKWIM? Let me see if I've got enough snaps and I'll get back to you tomorrow. Prod me if I forget!
If you post them and cover postage back to you (method of your choice) I will do them but I won't get to it until after this week (stupidly busy half term break!). @Chunkychels What type / size of snaps did you buy?