Try it and find out?
I've dabbled in trying to build a DLG a little bit, and if you have some sort of peg to launch with, you have to have that peg a lot more secured than you'd think. Even with the Alula that David added a peg to he used epoxy and fiber glass to hold it in place. I tried a bamboo BBQ skewer as a peg and it didn't take long for it to snap in half. You'll need a thicker wooden dowel for the peg. But maybe build a Versa Wing and just pinch the wing tip when throwing it. You actually get a lot less force when pinching it, and I'm sure that the Versa Wing could handle that. But to really get it in the air you'll need a peg, but I really don't know if it would handle that without some sort of spar.