C-Clips for PEHD (flexible) pipe - DN16,20,25,32

My mother needed some clips to keep a thin sheet of plastic onto some piping for her makeshift greenhouse, so I made her some, then I modified the design for common EU piping diameters (DN16, DN20, DN25, DN32). Only tested DN20 and DN25 for proper fitness. Includes finger hooks for easy removal.

I only printed in PETG since it's more flexible than PLA, even though it probably works in PLA too. ABS or ASA prefered if used outdoors