TheTentLab New improved Deuce(R) Ultralight Backpacking Potty Trowel - now in 3 sizes https://www.amazon.com/dp/B07BFHYNYG/ref=cm_sw_r_cp_apa_i_lT1cBbSSWDRKT

I personally use the #1 .45 ounce trowel. You can use the small end to score a hole, then use the big end to actually dig.