I have persuaded him not 2 have black wallpaper (god help me when he hits his teens) and instead he has said he would like tom and jerry wallpaper Please any ideas where i can find it if indeed it even exists

Try this

http://www.wallpaperandborders.co.uk/wallpaper-shop/index.php?main_page=product_info&cPath=42_493&products_id=2361s

i saw that i thought it was just the yellow boarder as it dont say how much that fab picture is would it b a mural or wallpaper he might just have 2 have boarder and paint

how about plain walls/cartoony coloured walls with the border, than a decal or wall sticker like this:

http://tottoteenstore.com/B005106HUG/M/B005106HUG.htm

you can usually get ones made to order on etsy, although theres quite a lot of random stuff that you could use as decoration (some nice old school t-shirts - maybe you could frame one of them and make it into a picture on the wall?) http://www.etsy.com/search?search_submit=&q=tom+and+jerry&order=most_relevant&ship_to=US&view_type=gallery

also loads of stuff here http://www.amazon.co.uk/gp/search/ref=sr_nr_i_4?rh=k%3Atom+and+jerry%2Ci%3Akitchen&keywords=tom+and+jerry&ie=UTF8&qid=1318081724