I went to my Local woolworths to buy the bouncy castle http://www.hotukdeals.com/item/225661/chad-valley-tiger-bouncy-castle-now/
( could not find any!) ;(
instead I saw this inflatable truck for £6.50.
It seemed a very good price. the plastic balls are not included.
It has better reviews than the castle!
Age Suitability 3 years up
Development Skills Imaginative Play
Development Skills Hand-eye Co-ordination
Dimensions (mm) 1520x1320x1520