Book a night at the Holiday Inn Express @ Lichfield and get a free family pass (2 adults & 2 children) to Drayton Manor Park.
This is a great deal, family tickets to DMP would be £69. The Holiday Inn Express is for a family room INC continental breakfast.
To get the deal, go to the HIE website, and enter Lichfield as a location. Click on the first hotel it brings up in the search, then enter your dates you want (I have tried all Saturdays from now right through to the end of Aug and there's availability!) When it brings up the prices of the available rooms make sure you click on `Drayton Manor 2AD2CH` and bobs your uncle!