You already have d10 and d100 (d00? What do we call the other one?), so there’s precedent for duplicating shapes.
But if you roll the d00 on accident, you can easily still treat it as a d10. If you roll the d8/4, you can't.
what do we call the other one?
A golf ball?
d% is what I usually see
I've heard it called a tens die or a percentile die. D100 is usually saved for the actual 100-sided die in my experience.
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You already have d10 and d100 (d00? What do we call the other one?), so there’s precedent for duplicating shapes.
But if you roll the d00 on accident, you can easily still treat it as a d10. If you roll the d8/4, you can't.
A golf ball?
d% is what I usually see
I've heard it called a tens die or a percentile die. D100 is usually saved for the actual 100-sided die in my experience.