I know what you're thinking...
moon sand + indoors = giant mess
Well you aren't exactly wrong about that.
However, I found this to be a great activity during the cold winter months, and days like today where it's 3 degrees from 100. Gives my boys something creative and busy to do indoors.
Using this roll-under-your-bed-tub does help contain the mess somewhat more than playing with it on the table.
I sweep the area before they play so that afterwards I can sweep any mess up and if it's clean I put it back into the tub...if it's mixed in with other messes I toss and still consider it money well spent.
I bought Moon Sand in bulk from Amazon, but you can also buy it at FatBrain Toys and these little tools for them to play with. They also like hiding buttons in it and playing "treasure hunt".
What has been your families moon sand experience?