I made these because I couldn't find any accurate rulers or measuring tapes for MMD.
The pack includes 1ft x 1in ruler, 1yd x 1in ruler, 1m x 1cm ruler, 2m x 1cm measuring tape.
The measuring tape has bones at each cm so you can quickly find the measurement.
I based them off the semi-standard MMD measurements system of 1 MMD unit = 0.08 meters = 3.149606 inches
1 inch = 0.318 units | 1 ÷ 3.14
1 foot = 3.821 units | 12 ÷ 3.14
1 yard = 11.464 units | (12 ÷ 3.14) × 3
1 centimeter = 0.125 | (1 ÷ 0.08) ÷ 100
1 meter = 12.500 units | 1 ÷ 0.08
2 meter = 25.000 units | (1 ÷ 0.08) × 2
I made them using PMXEditor's simple primitives plane+. I first made them 100x (move the decimal point over to the right by 2.) Then I used the scale plugin to scale it down (0.01) to make them as accurate as possible.
The texture are a 1:1 scale in case anyone wants to edit them to improve them.
I have compared them to devious bunny height chart and the two don't line up. I reached out to devious bunny to find out how they made their chart and how they checked the scale. They have explained how they made theirs and I feel mine is the more accurate.