My son often propped up his Kindle against household items like cookie tins so he could watch his educational videos and kept asking me why his tablet didn't have a kickstand like my Microsoft Surface Pro 4.
Rather than buy him a new case with an integrated kickstand, we designed this clip-on kickstand in about 30 minutes.
One design criterion was having the stand stay attached to the tablet rather than a separate piece that can fall off or rests on a desk. This model has a little bit of spring to it and will grip the foam case to stay in place but is flexible enough to remove without snapping if printed in PLA. It works best in landscape orientation for movies/games but will also work in portrait for reading.
It can be used with the Amazon OEM foam kid's case for the 5th generation Kindle Fire 7" tablet. It may also work with the newer 7th generation 7" tablet but I haven't tried it. The contour of all the OEM foam Freetime cases are quite similar so with slight adjustments it can fit other models.
V2 has a slightly shallower angle for better stability and pre-scaled 8"/10" compatible STLs have been added.
Disclaimer - I am an Amazon employee. This is my own design done in my free time
and opinions in this post do not reflect the views of my employer.
Recommend using glue stick when printing with PLA to prevent the part from dislodging from the bed. The surface area is small so it may not stick well.