"A lot of life-size playmobil standing in every single corner? and bags of parts and klickies sold at some very low prices?? "
well, what's a lot? There are quite a few regular toy shops around the island that have them standing at their door or inside somewhere - the factory has a good number of different ones. Bags with clickies and parts are not easily found, you need to know where to look: as playmofire said, they have been targetting the Valletta ones quite actively. I still find stuff at some other booth sales on ocassion, but it's not guaranteed (and I doubt you'll be able to find those..)
If you tell me when your cruise ship arrives, I'll drop by and give some stuff (any weight restrictions on you luggage on cruise ships?)