Hi, i have put some pennies in a few empty pop bottles as you suggested !! i have 1 on the kitchen window sill and the others on nearby window sills im going to have a go with that first !! they are  asleep on the couch at the moment , i think i'll do the bottle and bring them in and shut the door .. see how it goes for a while ..really hope this works , thanks for helping me, i shall let you know how it goes 
