wind proofed lantern

The lantern is 8,8 cm tall, and 6,4 cm wide. Candles up to 4 cm diametre fit in it. The lantern is out of 4mm plywood. To get it wind proofed, you need 3mm acrylic glass. But if it only has to stand indoor, you don`t need it.
The wooden ring should only be used for glueing it together and not to glue it on the lantern. It can be put on the lantern while the glue is cureing. So the lantern will be symmetric.