The Jabberwocky had almost the base plate I was looking for, but I needed to add 16x16 mounting holes. And then I probably went a bit overboard.

Printed in red PETG my kid named it Ladybug. Only tested inside, so far, it has held up to some rough indoor crashes and produced a 2S quad at 48/49g, about 77g with a battery.

-Added 16x16 mounting holes to base plate -Lowered plate height to 4.25mm -X base plate with or without 25.5x25.5 mounting holes -Square base plate with or without 25.5x25.5 mounting holes -Baseplates support up to 10mm battery strap and weigh 10-11g -Top plate designed to mount to same hardware as stack, no extra stand offs -Top plates support 14mm camera and weigh 3-4g -Top plates with optional camera guards and 25.5x25.5 mounting holes -Uses M2 hardware -Intended for use with 2S batteries and 2-2.5 inch props