This design makes very strong pegs.
There are two sizes , 15 cm and 18 cm, but I included the Fusion360 file where you can adjust length, width, height and hole diameter.

I printed in PETG.

Have fun printing!

A make is always welcome :)

Creality

Ender-3 S1 Pro

Doesn't Matter

No

Standard Quality

100%

Temperature 240 / 90 degrees Celsius, no glue on buildplate but clean it well with isopropyl alcohol.