I love taking my Grandaughter's finger engine, to shows......

It gives the young ones, something they can operate, themselves. Also, the Mums and Dads often take an interest too.
Strangely..... Small girls, are often
more intrigued, than boys.....

I posted the build, as it developed, on Modder
I often tell interested people, to Google,
"Mia's Engine". For the full story and nice pics of Mia's adventures, during it's creation.
Well.....
P Bucket, put a stop to that. Didn't they! 
I have just spent
too many hours, over the past two days, rebuilding the stories.
View here.....
http://madmodder.net/index.php/topic,9470.msg104843.html#msg104843If you've not seen the saga before. I hope, you enjoy the recycled posts......

David.