I have the following:
a set of Happy Land People from around the world (I think its about £8)
Lots of homemade books which celebrate different religions and festivals mainly from Instant Display
Religious Education Resources, Christianity and World Religions
2 Multicultural dressing up clothes sets from around the world
Lots of shop bought books to promote diversity (Loads 2nd hand on ebay)
Dolls from different cultures or of different skin colour etc
A set of Multicultural Musical instruments
Flashcards showing people of the world
Flashcards showing food from around the world
Various posters
Focus on celebrations eg Chinese New Year, Holi and Diwali
Bookmarks