I have a Viva from earlier this month and in it is an article called Affordable Art. I was trying to remember why I kept it.....!! well do you remember the Russian dolls that fit into each other? Yeah? Iko Iko in Auckland have a 'nude' set of 5 you can purchase for $32.90 (no I won't be). They can be painted or you could alter them. I think they are so cool. However, if you got as scrap arty as we are want to do they prolly wouldn't fit inside each other anymore, as if it matters. You could have a lot of fun with these babies!
a pic of a set of Russian dolls found on the net
In the same article, Gorgi have flying wood pigeons, $55 for a set of 3 although I'm not sure they would lend themselves to the same enrichment as the dolls.