Rock'n Rollers were shell shaped crisps made by a British company that has been a wholly owned subsidiary of what company since 2006?
Rock 'n' Roller Crisps: Rock'n Rollers were shell shaped crisps made by Golden Wonder in the UK during the 1970s. Golden Wonder:  Since 2006, it has been a wholly owned subsidiary of the Northern Irish company Tayto, after being rescued out of administration.
Tayto