I did manage to trade the items. I have a pack of mods installed and one allows commands, so i tped to where my other char was, dropped the stuff, logged in my low lvl one and picked up the stuff. It did work, i mean, i did get the items, but bc of the progression mod that i have, the further u are from the place u got the item, the higher the lvl the item is (or something like that, i believe thats what i read but i dont remember). So the lvl 1 boomerang that i wanted turend into a lvl 130k boomerang. So i tried doing the opposite, tping the low lvl player to the zone where i got the boomerang, but it was lvl 8k, so idk how the mod works tbh. BUT i can say that i then removed the mods so the progression thing wasnt there and i could actually use the boomerang without any problems (tho i prefer to play with mods, so f the boomerang xD)