This tutorial comes from Roots and Wings. They offer a great step by step guide to pouring your own urethane molds and then using them to create Lego soap. The urethane mold could also be used for other projects: chocolates, ice cubes, playdough, gummy candies, etc. Note: if you use the mold for making food be sure to get the urethane that is approved for food. Thanks Rebecca!
via: Craftzine
(Images: Roots and Wings)






Sheex Bedding
Isn't the lego shape and design trademarked, making this a trademark infringement?
Is it not easier to make a negative with more lego parts than spend a lot of (uhh, very healthy for kids) urethane in such a mold. I can't believe it as a pretty good idea!
i'd probably use alginate, the stuff dentists use for impressions, if i was making molds with children. it's dust free, sets quickly, and has food grade ingredients.
It doesn't sound like the kids are actually involved in the mold-making process- just receiving them as party favors. I think it's a fun idea; would Legos be too small to really use as soap though? Maybe Duplo blocks (made by Lego but much bigger) would be better?
Nothing about this seems easy. But she does have a ton of cute tutorials on her blog that made me wish my daughter was 6 and not 16.
Wow, uh, that's a lot of work for itty bitty Lego soaps.
And, I was thinking about the alginate mold, too (although I didn't know that's what it was called, I was flashing to the easy impressions my orthodontist made of my teeth back in the day.)
The Lego bricks are too small and will quickly dissolve into nubs.
It is so exciting to find my lego soaps on Apartment Therapy! Thank you so much for the great write up and link!
I thoroughly love coming up with new crafts and original things for my kids' parties, and these soaps were a huge hit! They are the perfect size for children's hands. We have them next to every sink in my home and the kids make sure to not just wash their hands, but to use soap as well! YAY!
On my blog I have another post where I made another kind of Lego mold for this same party http://rootsandwingsco.blogspot.com/2010/02/kool-aid-playdough-legos.html With that mold I made food items such as chocolates and ice cubes, as well as playdough.
We have used the other kind of mold options other commenters were talking about in the past, but really enjoyed trying out the urethane mold for this craft. I made a mold of my daughter's hand out of alginate and you can see it in this post : http://rootsandwingsco.blogspot.com/2010/02/welcome-to-my-house-valentines.html So I can certainly appreciate there is a time and place to use that type of mold.
splatgirl-I am not selling anything so there is no infringement
I am so glad this has gotten so many people's attention and I love the discussion going on surrounding it!
Lego makes a ready-made mold for eight dollars, and theirs is food-safe to boot. (great for making konjak)