Lego is my weakness, so it was with some trepidation that I embarked on my investigation of the Amazon Prime Day Lego deals. Devastatingly — for my bank balance — a sizable chunk of my wishlist is included in the sale. There's the Milky Way set, discounted to £113.99 (was £169.99), in all its swirly, magical glory. I've thought about this set at least once a week since it launched. Zoomed out, it forms a coherent galaxy, but look closer and you can see that all kinds of quirky shapes have been repurposed to build the scene, from flower petals to whisks. I can't wait to get frustrated with all that fiddliness.• Browse the full Amazon Prime Day saleA close second on my dream Lego list is the Rivendell set, now £355.99 (was £429.99). Fantasy scenes like this are what Lego is perfect for, from the quaint, colorful tiled roof to the delicate foliage. It's also packed with scenes that refer back to iconic moments in the Fellowship movie, which are fun to spot. It's not the biggest percentage discount, but it is the cheapest price on record for this set, which I think is a good enough reason to buy it, don't you?Lego's first road bike set — which launched a few months ago, to much enthusiasm — is nearly 30% off, and there are also big discounts on multiple Harry Potter and Star Wars sets. The Prime Day event officially ends tonight, and since I started looking at these deals yesterday, some have sold out already.Scroll down to see more of my personal picks from the Lego Prime Day sale — but beware, serious spending may follow!Brilliant brick picks Lego Star Wars Millennium Falcon 75192 Lego Art The Milky Way Galaxy 31212 Lego Icons Road Bike 11380 Lego Lord of the Rings Rivendell 10316 Lego Art Claude Monet – Bridge Over a Pond of Water Lilies 31220 Lego Architecture Trevi Fountain 21062 Lego Harry Potter Hogwarts Castle: East Wing 76473 Lego Lord of the Rings: Barad-Dûr 10333 Lego Harry Potter Hogwarts Castle 71043 Lego Star Wars Death Star 75419 Lego Classic Large Creative Brick Box 10698 Lego Star Wars Smart Play At-At Attack on Endor 75424 Lego Marvel S.H.I.E.L.D. Helicarrier 76354 Lego Ideas Disney Pixar Luxo Jr. 21357 Lego Art Vincent Van Gogh – Sunflowers 31215 Lego Lord of the Rings Sauron's Helmet 11373 Lego Harry Potter Hogwarts Castle: the Main Tower 76454 Lego Architecture Notre-Dame De Paris 21061 Lego Harry Potter Diagon Alley Wizarding Shops 76444 Lego Harry Potter Luna Lovegood's House 76467 Lego Disney Princess Pua 43292 More Prime Day deals in the UKAmazon Prime: get a 30-day free trialAmazon Devices: up to 67% off Fire, Ring & BlinkAmazon Haul: extra 15% off for Prime membersAppliances: up to 40% off Ninja & De'LonghiBeauty: up to 60% off Philips & Oral-BEssentials: cleaning & groceries from £2Fashion: up to 50% offGaming: record-low Nintendo Switch 2Headphones: up to 50% off Anker & SonyLaptops: up to £800 off Microsoft & AsusTablets: up to 50% off Fire tabletsTVs: from £129.99Vacuums: up to 50% off Shark & DysonWearables: Samsung & Oura from £31