Variations of a Yokappa image, Mahiro.
1: panties
2: dildo
3: Top
6: Mouth
12: Hands up

@exlurker
I don't get it.
Should I add the numbers together? In this case some things would be ambiguous.
Is it about the digits? In this case, some things wouldn't be possible.
Do the other numbers mean variations which are not listed here?

@p11
I forgot to indicate that 1 and 2 are a tristate, so you can choose either none, panties or dildo.
The other ones (3, 6, 12) are a toggle.
Sum all the options you choose.

@exlurker Oh, after reading it a few times I get it.
So it's really a sum, but since 1 and 2 are alternatives, 3 is a valid number.

I still don't think, that's a useful system, except it's some way to prevent stupid people from voting.
(or people who are too lazy to calculate)

I'd just do this:

1: panties
2: dildo
3: Top
4: Mouth
5: Hands up

Survey options (same as in your survey, also same order):
- 1, 2, 3, 4
- 5
- 1, 5
- 2, 5
- 3, 5
- 1, 3, 5
- 2, 3, 5
- 1, 4, 5
- 3, 4, 5
- 2, 3, 4, 5