Glue spreader - different sizes

I’ve been looking for a good glue spreader for a long time, one that works with different types of glues and also thicker pastes like Mamut. So I designed this model, which works great and I always keep a few in my toolbox just in case. Each piece has four usable sides. That makes it reusable: you can simply let the glue dry and peel it off, or cover the edge with tape to stop the glue from sticking.