Stylised london map with cycle routes

These are really lovely maps - think i'll be ordering one in emerald - silver - blue soon..

Does anyone know of any good and cheapish hanging solutions? The frames they supply are very expensive. Short term I'd be happy with just getting it on the wall, without damaging the picture at all (so no tacks or bluetack preferably)

spent a while getting this sorted so have a gander at this:-

just bought them cheap things you slide documents into from Staples, glued two together, one taped neatly onto bottom for weight, fed string into it, these ^^ are 2 and a half foot across, been working 6 months now, maybe try that?