Weetabix Lego Promotion from the 1980s [UK]

[Jabba the Taff]

I really hope someone can help me. I'm convinced I once had a Lego set from a Weetabix offer in Britain, in the mid to late 80s. The set was of one of the Neet Weet Gang. You can see an advert here http://www.weetabix.co.uk/media/time-machine/weetabix/7/

I'm sure this character was 'wearing' blue shorts and a red and white hooped top. The eyes were this piece, http://www.peeron.com/inv/parts/3003pe1 and the mouth was this piece, http://www.peeron.com/inv/parts/3010p01 as 2 x 4 brick.

Does anyone remember this set? Please tell me I'm not imagining it. I'm pretty sure I still have all the pieces so I'd like to get the instructions to remake it. I've done a pretty thorough search and can't find anything on it. Brickset and Peeron have other Weetabix promotional sets, including the holiday house (1484) I also got, but no mention of this one.