Self-bondage for people with not a lot of tools and stuff

Hi im fairly new to bondage but i have tried to do a bit in the past. i have a problem and that is that i live with a few people and i cant just order stuff like cuffs and things so im stuck with padlocks rrope and pegs for nipples etc.. i was wondering if any one had any scenarios that i could do with stuff like that? i have normal household things and might be able to make some stuff if anyone knew how. please reply soon thanx SelfbondageGuy