I quite like the idea of sticking things to the walls in my house. Also, I like the idea of being able to get them off again. Happily, I found some handy adhesive things in Paperchase that say they stick to walls and things and come off again. Perfect. £5 for a pack of 50, not too bad.
So, I’m thinking of more up to date versions of ye olde ducks in a row:
Perhaps origami butterflies or birds?