We've actually accummulated quite a lot of stuff over the last year ( the duration of our relationship ). I still like the fundamental 1 x Girl item the most!! But am also very fond of a number of restarints, numerous vibrators but one in particular that she really likes, a couple of vibrating butt plugs, one little vibrating bullet that you can feed though a chain loop and then run the chain under her so it's pressed unshakably onto her clit ( while also holding in two plugs ), one wireless vibrating vaginal plug, a bunch of knocked together home-made spreaders and a yoke. A number of outfits and heels, nipple clamps and a couple of crops. And a partridge in a pear tree...etc...
Favourite item ( bar the girl) is probably wrist cuffs for rendering her vulnerable to everything else.