I bought most from Pets at Home (UK) which are having a "buy three and get the third free" offer at the moment. The prices before the offer are- Statue £13.00, Greek Temple £13.00, Submarine £10.00, desert scenery £13.00, Sphinx £4.00, Easter Island £4.50 and Plant £5.00. With the third one free, they worked out pretty cheap (I think).