How have people built up such large collections of bricks?

I would like to get into building Lego Great Ball Contraption modules, but this needs a lot of parts to play with. I've got some Lego from (30ish) years ago, but not much seems to have survived, and I've bought a couple of bug Technics sets - but I need a lot more Technics, plus more standard bricks, plates, smooth plates etc.

Buying sets is one way, but expensive and I don't like to just make them and then instantly dismantle again.

Buying on a site like Bricklink is great for specific pieces, or when I have something to get it all in the same colour etc.

I've seen random "1Kg lego parts" on ebay which I can try to use that to build up a load - has anyone tried this?

Or is there another way I'm missing?

4 Answers 4


I keep my eye on Craigslist and Facebook Martketplace. There’s always someone selling a collection or a bucket of pieces. There’s also a subreddit /r/legomarketplace that sometimes has good deals. I’ve had success with all of these this year and have put together a great supply of parts and sets.


I haven't tried to buy a load but Facebook marketplace seems to have more choice these days for local heavy items for collection. Might be worth a look.


Generally speaking, for bulk bricks the best place is eBay.

For greater selection (probably what you need for largish pieces),

For individual pieces, Pick-A-Brick or Bricklink.

Also for several months now, Costco has been selling a 1500-piece Creator box for ~$40 which is as good as I've ever seen for new bricks.


Find a teenager you already know who will spread the word that you will trade old, boring Lego collections for new, shiny video game cash.

Their parents will HATE you.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.