Simpler Sealant (Caulk) Tube Holder - wall mount

I love the original idea, thanks to the author for that !

I redesigned it to be simpler and faster to print, mainly : No need of support !
With the same slicer settings, we get :
- original : 7h50, 171g of filament
- remixed : 5h45, 115g of filament (25% faster, 30% less filament) for the total of two sides

The two sides are identical, just print two of them. In the first photo you can see original below and remixed on top