Children/animals, permanent marks, needles/sharps, blood play, scat, genital mutilation/torture (hard limit), age play (DD/lg is not the same thing), race play (
info here), caning/bullwhips (soft limits), trampling, strangulation (not the same as choking), isolation/solitary
need a full list of limits to better know yourself? Check out
my BDSM limits online. Fill it out and send it to your partner.