What do i do with my old thinkpads?

i got a 1999 (i think) thinkpad 570 with ultrabase running xp sp3 but i have some cool things on it and i cant change it from slovak and a t40 (i think?) running well the os is kinda cooked on it i dont want to post pictures because i know someone will somehow find my home address by the reflections on a spoon or something /s