Oversized Canon Demi EE17 Lens Cap

The Demi EE17 will let you take a photo when the lens cap is on and, as it's not an SLR, you might not notice until it's too late. This oversized lens cap is more easily noticeable through the viewfinder when installed, hopefully avoiding that mistake. 

There are three files included. STEP files for the lens cap as well as a version with a knurled outer rim, and a 3MF file that has the non-knurled version along with the Canon logo and an "insert" on the rear of the lens cap which can be printed in a different, brighter color to help it be more easily seen (I'm not sure if that's particularly helpful or not, tbh. Glow in the dark filament might do something, but it's so close to the viewfinder that it's pretty out of focus. There are photos through the viewfinder with the lens cap both on and off so you can see the difference. 

It may be a little difficult to insert the first few times. I printed mine in PETG, though other materials are probably fine.