R4 Keycap. Used mainly for the Escape Key but can be used for any of the top 2 rows of keys (F keys and Number keys). Feel free to download the model and add your own design to it.
I printed in ABS and keycap removed from the supports while taking it off the print bed. If printing in PLA (I haven't tried) I'd assume increasing the gap between supports and the print piece would help the supports remove easier.
I print it with the top of the key facing upwards. I printed in ABS and the supports separated nicely. However, I haven't tested this orientation in PLA. I'd assume they wouldn't separate as easily so you may need to adjust the gap height between the support and the print.