Quick and inexpensive filament colour chart

+5 tests
+Shows relevant material properties
+Fast print
+Inexpensive little material consumption
+ 1mm thickness only
+ Stackable as a colour chart with a simple zip tie

Note : I did not insert, at purpose, regular model test as overhang, text or detail test because those shows first printer abilities, not filament's. On the other hand, a filament sample swatch must be printed quick and easy on any printer and must uses few filament.