Back when my kids were little, we found a very fun alternate use for those foam floor padding mats. Here's a few of the fun buildings we made with them.
WHERE TO FIND MATS LIKE THIS
(Note: The links below are affiliate links through which I can earn commission.)
I found several styles of foam play mats like the ones we used on Amazon....some are plain, some have alphabets shapes like the ones we had, and others have fun shapes and designs that weren't available when my kids were little. I'm so curious what type of things kids could build with triangle, hexagon, and rhombus shaped mats!
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(You may have noticed that I actually showed some faces in this post, which is usually not something I do. Well, my "little boys" are all teens now, all three taller than me, and I got permission from two of them to share. My third still didn't want me to so I respected that.)