Maltese Cross Fidget Spinner

I'm a FireFighter and was asked to come up with something for my house to hand out to kids... Here are a couple of my designs so far...

the large ones are large... about 94mm in diameter... small children will not be able to spin it well... the small ones will work for them...

So far I prefer the large 8 nut and the small 608... but I'm not a child :)

If you like try spinners I really like this one I came up with : http://www.thingiverse.com/thing:2266290

Use one of these bearings in the center (removed the dust shield and cleaned with wd40) - http://amzn.to/2p0Va7R

and three of these in the perimeter - http://amzn.to/2odxik1

The nut models all use 5/16 nuts - http://amzn.to/2pzcJva