My 6 and 3 year old daughters and I have been really excited about this project, and started building a "retro" box to house their RPi when we get it.
Really like it, excellent work! The last photo made me laugh, your 3 year old looks slightly bemused by your project (I think they are excited for you! lol)...
It is a good idea, since they can understand what goes into it, but it will be safe/strong enough for them to use.
Anyway, I know first hand how much they enjoy such stuff, my 5 year old daughter was fascinated when I was re-building my pc a few days ago, asking all about each of the parts and was overjoyed when I let her tighten some screws for me. Unfortunately she was VERY annoyed with me because I had finished it the next day and she wanted to put the power supply in for me (I felt so bad...)!
She keeps asking me when she can help me with "my experiments" now. My wife will kill me (no wonder the garage is full...), but I might just have one of those 1000in1 electronic kits in the garage which might be put into service at some point.
If you want to post more details of how you get on, I think it would be great to add to the wiki too.
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