You can't beat classic LEGO for kids of all ages, and this LEGO Classic Creative Transparent Bricks Building Set is a brilliant price at Amazon right now. It's down to only £15, when it has a recommended price of nearly twice that at £27.99, so it's definitely worth grabbing at that price. Got Prime? You'll get free delivery too!
This is a 500 piece set with a wide range of colourful bricks, in a mix of regular solid colours and transparent bricks in lots of different shapes and sizes. You get a set of printed instructions to help you build 8 toys including a toy bird, lion, turtle, robot, unicorn, pink bird, wizard with potions desk and a fish in a coral setting. From there it's over to your own imagination to build whatever you like!
There's free One Day Delivery with Amazon Prime, or it's free on orders of £20 or more for non-Prime shoppers.