I run a youth program at the local club and a lot of the kids use recurves. I found it tedious to use a string based stringer they just take too long and are hard for little kids to use. Some kids just don't have the strength to pull up and reach over to string the bow. I saw in an NFAA video a technique where the kid uses a strap to hold the handle down while they straddled the bow and pulled the limb up. This looked like a great way to string a bow. It allows the Kid to use all their to pull up on the limb and have the string and limb tip right in front of them where it is easy to see and adjust it straight. So I added a little twist to the idea. I made one out of 2x4 lumber and three bolts. and some rubber hose. The kids can now straddle the bow and string and unstring their own bows quickly and easily. Note I drew foot prints on the stringer where your feet go and I also drew where the limb and handle go to help them figure it out for the first couple of times that they use it. Note if the bow slips out of their hand it is driven back down into the ground where it is likely not to hurt anyone.
Enjoy and shoot straight.