I'm a big Lego fan and these deals are my recommended Prime Day picks

Lego Technic Porsche 911 RSR Race Car: was $179.99, now $125.99 at Amazon
This stunning Lego Technic build comes with 1,580 pieces and, as the final model has intricate detailing the sub-brand is known for. It's great for display or play.

Lego Marvel Nano Gauntlet, Iron Man Model with Infinity Stones: was $69.99, now $48.99 at Amazon
Taken from Avengers: Endgame, this gauntlet build is designed to be proudly displayed, much like the Lego Star Wars Darth Vader and Mandalorian helmets. It comes with its own plinth too.

Lego Star Wars Luke Skywalker's X-Wing: was $49.99, now $34.99 at Amazon
As well as an accurate build of the X-Wing flown by Luke in A New Hope, you get a great selection of mini figures with this set. Luke, Leia and General Dodonna are included, along with R2-D2 who can fit in the correct position in the ship.

Lego Star Wars Millennium Falcon: was $169.99, now $135.99 at Amazon
While it's not the full Collector Series set, this build still comes with 1,351 pieces and can be opened to fit the 7 included minifigures inside. It's also a lot less expensive – even more so with this great deal.

Lego Ideas Medieval Blacksmith: was $179.99, now $125.99 at Amazon
Intricate and detailed, this 2,164 piece set makes a three-level building that houses the blacksmith and all his tools of the trade. There's even a full kitchen on the ground floor.

Lego Disney and Pixar Up House: was $59.99, now $47.99 at Amazon
Up is my favourite Pixar movie and this set is among my favourite Lego tie-ins too. It's a great build for kids but equally looks splendid on a shelf when complete.

Lego Batman Batmobile Tumbler: was £229.99, now £179.99 at Amazon
This 18+ Lego set creates a replica Batmobile Tumbler from The Dark Knight trilogy of movies. It comes with Christian Bale's Batman and Heath Ledger's Joker as minifigures, and there are 2,049 pieces in the box.

Lego Star Wars Darth Vader Helmet: was £59.99, now £51.97 at Amazon
One of our favourite Lego sets, the Darth Vader helmet is one of the best builds in the range. You get 834 pieces and it looks great when finished and sat on a shelf or desk.

Lego Star Wars The Mandalorian Helmet: was £59.99, now £38.73 at Amazon
Another in the display collection, this replica of Mando's helmet is arguably the most topical. It comes with 584 pieces and a name plate.

Lego Star Wars R2-D2: was £89.99, now £68.39 at Amazon
There have been a few bigger-sized R2-D2 sets around over the years, but this latest seems a great bargain at this price. It also comes with a Lego mini figure version of Darth Malak from the Knights of the Old Republic games – a real treat for proper Star Wars geeks like me.

Lego Icons Vespa 125 Scooter: was £89.99, now £63.59 at Amazon
As a bit of a lover of all things Mod, I'm a sucker for a vintage Vespa – but have never got close to owning a real 125. This is definitely a great alternative that looks superb on a sideboard.

Lego Harry Potter Hogwarts Castle: was £409.99, now £292.11 at Amazon
This 6,020 piece set is one of the Holy Grails for Lego and Harry Potter fans alike. It is filled with tiny details that are accurate to the movies – you just need a fairly large area to build it in.

Lego Super Mario The Mighty Bowser: was £229.99, now £170.98 at Amazon
A relatively recent addition to the Lego sets lineup, this Bowser model is made up of an impressive 2,807 bricks. It also comes with a hidden POW block that interacts with Lego's Super Mario gaming sets.