What a great offer for ages 6-14 – go into your nearest official Lego store on the first Thursday of every month between 4-6pm to take part in the Lego Mini Build.
Stock is limited to 200-300 models per store (depending on size and location), and its first come, first served. The Staff will show your kids how to make the model worth around £5 . Once it’s been made the kids can take it home for free.
The models are different each month. Feb to April listed in comments.
I guess you can design something at home, then possibly build it in store
Participating stores include: Blue water, Brighton, Cardiff, Glasgow, Leeds, Liverpool, Manchester Arndale, Milton Keynes, Newcastle, Sheffield Meadowhall, Watford and both London Westfield centres.
There may be stores in other countries doing this, have a look and in the top corner is a ” change region ” button
Good Luck & Happy Building