Ah, the Big Fresh wows!
I have been doing these stores for the past couple of years now (with ongoing work) and have pretty much got them sussed.
Each wow basically has happy yappy characters who move and mime to a singalong tune everytime a bratty kid hits (and I mean HITS) a big button while mum buys the cheese.

what... Cow Wow - interactive display

where... Big Fresh, Moray Fields, Qld.

work... sculpted polystyrene cow, mechanical animation, installation