If you don't have the pieces to make these fun free Halloween builds, you can always purchase loose LEGO bricks to build your collection. The LEGO Classic Large Creative Brick Box holds 790 mixed LEGO bricks in several different colors, including black, white, orange, and green.

Note that this build LEGO box may not include the exact pieces needed for the free Halloween LEGO builds above, but it would be a great start to your loose LEGO brick collection regardless!

This epic 2509-piece LEGO pirate build is new in 2023. You'll build a beautiful pirate sailing ship along with the epic fortress of Eldorado to recreate battles between pirates and imperial blue-coats. The modular set is great for making epic scenes and a beautiful and interesting display. This set is inspired by a classic LEGO set first released back in 1989. The set includes a whopping 8 minifigures: 6 imperial soldiers and 2 pirates. There are so many fun details in this new set you'll have fun playing and displaying! Note that this set was originally exclusive to sale on LEGO.com.

This fun pirate ship LEGO set is actually three sets in one -- you'll get instructions to make an epic pirate ship, a creepy skull island, or a pirate inn building. It's like three sets in one! The set comes with 1260 LEGO bricks and includes 3 minifigures: 2 pirates and a deckhand. Other fun details include a buildable shark, skeleton figure, and more!

This is a cute little 168-piece build to make a pirate ship playground out of LEGO bricks. The playground has a fun pirate theme with the main structure shaped like a pirate ship. The playground set includes two minifigs of children dressed up as pirates. The minifigs can slide down a slide, climb a climbing wall, spin on a spinning octopus, and keep watch in the crow's nest.

This LEGO set is part of the LEGO Friends series, which has different styled minifigures that are more realistic; the line was originally aimed at young girls and the sets are based around a group of (mostly) female friends.

This is a big 989 piece set to make a really fun build -- a jeep style vehicle towing a horse trailer! The set includes two horse figures, and three friends minifigures (Savannah, Emma, and Elijah). You'll get other accessories like horse jumps, riding helmets, and other riding accessories. This awesome set originally retailed for $99.99, and is going for $69.99 for Prime Day.

Put together an iconic set piece from the Book of Boba Fett Disney+ series with this 732-piece LEGO set. The set includes figures of Boba Fett, Fennec Shand, Bib Fortuna, one Theelin Dancer, a Weequay Guard, a Gamorrean Guard and a Quarren figure. The set also has fun details of the original Jabba palace like a pop-up to eject Bib Fortuna from the throne, shaking steps, a secret weapon chamber, and more! This set's original retail price is $99.99. It's marked down to $66.50 for Prime Day!

This is a great set to supplement or start a DUPLO building brick collection -- it's a set of 120 DUPLO pieces! The set includes easy builds using the larger size DUPLO bricks that makes it perfect for younger builders. Kids can make little animal figures, simple shapes like hearts and plants, a rocket, and more. Since these bricks are compatible with all DUPLO sets, creativity can go wild by adding these bricks to other sets to enhance play! This set originally retails for $44.99 and would be a great gift idea to bundle with the play table featured later in this LEGO Prime Day list of deals. For Prime Day this set is selling for $31.49.

Add the iconic Razor Quest ship, the Mandalorian's original vehicle of choice, to your LEGO Star Wars collection this Prime Day. This awesome build based on the iconic ship was originally released in September 2020, and became a fan favorite. It's usual retail cost is $139.99. It's down to $97.99 for Prime Day.

The Razor Quest LEGO build is a 1023-piece Star Wars set featuring the vehicle full of unique details. Add two figures to the cockpit, fire the action shooters, and keep track of your bounty inventory in the cargo hold, complete with carbonite-frozen successes. 

This cool LEGO Mandalorian set includes four minifigures. You'll get title character Mando, a Scout Trooper, and agent Greef Karga. The fourth minifigure is of The Child (Baby Yoda).

This is not an official LEGO product. This is a little play table made for young children; the play surface can be flipped so that one side has studs compatible with LEGO DUPLO; the other surface is smooth. The table includes storage containers and stands on four legs for stability. This little table has retailed for around $30 in the past. The Prime Day deal is $23.39.