Here we have three symbols for "switch" - a person who has both dominant and submissive inclinations.
Following are 6 symbols for various breast activities, including titty fucking (also referred to as "Russian" in much the same way as anal sex is sometimes referred to as "Greek"), breast bondage & torture and nipple clamps and finally one for those who enjoy lactating ladies (milk maids).

Finally an update!
I was sick for a nearly two weeks and since then just haven't been motivated to post... until today that is.
Today's icons finish of the "strap-on" set and also feature icons for corsetry and the standard set for bondage (I have designed more specific icons for the various activities in bondage but these ones encompass the whole range.)