the most recent wedding I'm aware of that info for, the groom gave the groomsmen shoes. heh. it was kind of weird, but kind of cool too. (he manages a soccer store.. they wore black gazelles with the tuxes).
at our wedding, we gave the groomsmen the tux jackets. they got something else too, I just can't remember what now (it was 23+ years ago). the tuxes we wanted we couldn't find to rent, but one of the formal wear places was *selling* their inventory of exactly what we wanted, 10 bucks/jacket.. I got 2 myself! so.. we bought their jackets, they rented the rest of the outfit.
I think my husband got an engraved silver shot glass (jigger) (williamsburg kind.. they went to william and mary), when he was in my sister's wedding.
anno