Brazillian TUSH Holder (a gridfinity spool holder)

As a woman of a certain age, I realized that my [TUSH](https://www.thingiverse.com/thing:2047554) needs a little extra support. I tried supporting my TUSH with [conventional methods](https://www.thingiverse.com/thing:4645143/files), but I noticed that throughout the day my TUSH would make quiet "clapping" noises as it wobbled back and forth; it is quite embarrassing. With the help of Mr. Freedman's [gridfinity](https://www.youtube.com/watch?v=ra_9zU-mnl8) system I designed something that could accommodate my needs. Since this is only the first version, I decided not to name this "infinity tush holder" to reflect its full integration with the gridfinity system. However, it does seem to work quite well, so I chose a number which is close to infinity: a brazillian.

The "H" shape of this part is to facilitate nesting a 1x1 gridfinity bowden bulkhead, the design of which is to be released later.

Parts needed:
2x m3 16mm screws (optional - works fine without)
1x [completed build of t