Here's an idea!

If you're in Dubai Marina Mall and you want to entertain the little ones for a while without it setting you back a dirham, head to The LEGO® Store on level 2 near the cinema. They have a station or two set up so you can play and build things out of LEGO® and a small Duplo section of the littler ones. It wont keep them entertained for hours, but still it will keep them happy for a bit and its FREE! Happy mum!