Fresnel Lens Sleeve and tape spool for "boo boo" kits

In an attempt to make the best "boo boo" kit that I could come up with I needed to transfer tape to something flat. I really like to pack Fresnel lenses in nearly every kit I put together because of the utility massive utility they provide while weighing next to nothing. The only trouble with them is they have to be protected from being destroyed by the rest of the gear in the kit. I have come up with this solution as a way to reclaim the tiny amount of wasted space involved in wrapping tape around an old key card and use that space to safely store a Fresnel lens. 

For anyone interested here is  an Amazon list of all the items in my kit:  (it's not an affiliate link or anything, I make nothing just thought it might be helpful)

https://www.amazon.com/hz/wishlist/ls/39FKFQ46XLEYU?ref_=wl_share

In addition, I also threw in the STL of the stencil I used to mark my kits as shown in the pictures. 

PS: I am not a doctor, I am not your doctor. etc. etc. you get the idea.