I just posted today in another thread here on OG (3D Printed Seed Shipping Pucks and Loader - #134 by Tlander)
about trying to find someone with the file to print these. The cheap things snap in two parts after only 2 days in the Sun, but for those 2 days they work great! And they come ‘off’ really easily with NO damage! I sometimes use a plastic clip/clothes pin to hold the clip and stem together.
The other types I have tried all can only last a day or so on the plant before it becomes impossible to remove without damage. The 2-piece ones are ‘better’ but they weigh more and can cause branches to droop where you don’t want them to.
The little curved black ones were the worst offenders, breaking 4 tips today alone! Plus they only cause a slight bend in the stem.
The biggest problem is that they try to make it a one-size-fits-all deal when it’s obviously NOT! If we can find a 3D-printing file for these it can be scaled to many different sizes…or so I believe!! 
