I like the idea above! Very good! You should definitely do that one! Even if you do it indoors somehow but itd be really good!
Another idea is to cover your entire pussy (lips and clit etc..) in clothes pegs, wait 10 minutes. Now go to the shower, use it on the highest setting and jet those pegs off! you cant stop until they are all blown off! Now put them all on your nipples and blow them off again. Then use the shower, on any setting, with cold water, to make yourself cum. After 15 minutes (or once you cum) you may get out but only after one more minute of clit jetting
Let us know how they go, im sure i have some more!