Wanted to have cheap, smooth filament stand. Went trough many project without falling in love. Made my own, as usual ;p Works pretty well around my farm.

Push and cut with about 1mm extra PTFE 4/6 tube into rollers. Screw in M4 screws as axles - make sure to do it normal to the surface. Screw together with about 3mm thick wood screw or glue it. Enjoy smooth rolling.