Collection of rare / misprinted LEGO pieces

Beyond the Brick's Joshua Hanlon talks with Dan Brown, the owner of the Toy and Plastic Brick Museum, about the collection of rare and misprinted LEGO pieces.

This is part of a Beyond the Brick series of videos highlighting the Toy and Plastic Brick Museum in Bellaire, Ohio, the world's largest private LEGO​ collection.

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[yozzzeh]

It's funny how lego manufacturing mistakes can make more bucks than perfect ones

[galvatron]

I used to have so many marbled bricks, never knew their worth lol

[---ynnp]

I got half a minifig head in a series 15 minifig pack, the other half was nowhere to be seen

[LeCafeRacer]

The marbling occurs when the barrel of an injection molding machine isn't fully purged of the previous material. Its typically a big heated tube with a screw that goes through it. You have to keep running material through it to fully purge out the old material.
On a side note, Lego molds are simply beautiful. I build test molds occasionally as a prototype developer.

[jaypey]

I've gotten sets with bricks missing

[reesalvin]

They should actually make mixed color legos… for good ground terrain, mix flecks of green, tan, brown, etc. Wouldn’t that be great?

[TheGreenguy]

I worked at a factory that used the exact same prosedure, molding plastic as they would use at LEGO. the marbeling is infact moisture in the raw plastic that go in the molds, creating unwanted steam as the plastic melts and therefor creating bubbles and miscoloring.

[AnnisAdventures]

Aw frick, I had a marbled Lego once. There goes my million dollar eBay paycheck

[randycarter]

Another explanation for the discolored pieces. As the plastic enters the extruder it's in the form of pellets 90% white 10% colored. While being melted they're mixed as they pass through the injector. Sometimes the mixing isn't exactly complete or even.

[tri]

i have a Lego Police hat which has no hole (to fit in the head) in it

[TNTLuver]

How can you tell if it's a Lego/Modulex brick?
Also: I have an older 2x3 white plate with the LEGO logos all kinds of screwed up... One is at a 45 degree angle!

[RebelliousRobot]

I think they should really try to make use of the marbling.

[zipperozicvideodump]

I really like the way the marbled bricks look. If it was just completely marbled, I'd probably buy those for like, 2-3 dollars a piece tbh, maybe even more.

[qwertzbalken]

LEGO employees: >make Mistakes

People: "Nice!"

LEGO employees: ...

[BigEvy]

I swear I had a green 1 by 2 angle when I was younger that had a white swirl in it, I had never thought of it as anything so away it went when my parents got rid of my LEGO. Really cool to see someone like them !

[bossblitz]

I once got two bricks that werent completed in one set xD

[GaddGaming]

I'm not sure what I've watched to end up here.
Still ended up watching though

[Laggspikeproductions]

As a guy who works in the plastic industry, i can tell you, the misprinted Lego bricks come from when you change the color of the plastic. The plastic/color goes down in a some sort of "oven" as we tend to call it, it then melts just to be "forced" into the mold, which then shapes the Lego brick.

I just thought to let you know :)
Have a nice day!

[billnye]

As I type this I am building the Lego set 6780 which I bought brand new in a bulk lot of classic lego recently, and I have come across a marbled Lego brick. The part number of the marbled brick is 4032. It’s a white brick with light gray swirls of color. Pretty neat!

[vacciniumaugustifolium]

As a coin error/variety collector this videa was really interesting. Good vid !