Wow, nobody helped you?
Fondant/gumpaste figurines will keep pretty much indefinitely so long as you keep them in the dark (to prevent fading) & protect from dust - but don't put them in an air-tight container, you want them to be able to continue drying out. So a closed cardboard box is good, or an open plastic container. I just stick them up in a high cupboard & leave them. If you want to display them they can just go into the china display cabinet or whatever...but they will fade, some colours quicker than others.