Sometimes during my period I get incredibly unbelievably horny. I've 'mastured' several techniques to use during that time of the month.
First off, I'll always lie on a towel. I never know how messy it might get.
I'll do the usual playing with my breasts and nipples, or playing with my clit through my panties. Then when I'm ready to really get down to business, I'll do any one of the following.
Thin latex glove. I could then use my fingers to masturbate normally, then just throw away the dirty glove. The slipperiness of the glove can be kind of exciting.
Condom on vibrator. All the regular thrills of a vibrator with no messy cleanup.
Towel sex. I'll either use the towel I'm lying on, or another towel. The towel actually goes inside of me, with my fingers doing the manipulating. The roughness of the towel is very erotic and exciting.
I hope some of you try these and enjoy them!