Heart puzzle clip-on cover

Simple cover for original fascinating puzzle: https://www.printables.com/model/26611-heart-puzzle-brain-teaser 

I've designed it so I can store all my printed puzzles in a box without loosing parts or wasting space. Also can help a bit to have it with you while traveling. (As original have solution engraved on the back there should be no issues there)

Note: tolerances might be a bit tight, if you tend to have overextrusion you can scale 100.05 to be safe.

UPD: 28 November. Redesigned in V2. True honeycomb pattern added, upper clips not flexible anymore, as they tend to break. Lower clips wider, overall model made sturdier

No magnets or additional hardware is required, original puzzle parts will do perfectly. 

How to print:

1)Material: PETG is the best option, as it provides enough flex for clips. (Reduce cooling or it can be brittle) PLA can still be viable option, but not tested

2)Supports: YES for good quality print. (auto supports will go fine, just underside of clips.) Here is the weird part: organic supports usually don't work well for this king of part for me, so I advice to stick to old-school

3)Print options: mine where 0.2 layer height, 0.4 nozzle, 3 perimeters (2 most likely will do the job, but why not), 5 top and 5 bottom layers, so almost no infill was there. But you can modify as you like

This model was designed in onshape, so if someone will need sources - I can provide them for educational purposes or some modification.