This one is a good deal, but not a great deal. But I thought some people might be interested.
Sugru is a very cool moldable rubber. When you first open the package it is basically the consistency of Playdough. You can shape it however you want, and it’s adhesive. Nonconducting and waterproof. After 24 hours, it cures to a rubber consistency that holds the shape. So really useful for a lot of different projects.
It comes in many different colors. Usually the cheapest way to buy it is to get a pack of eight or more in all black or all white.
There’s a sample pack with one each of red, white, black, and silver/gray. That usually sells for $15, but right now it’s on a prime Deal for $12. That’s about the same price per unit as the regular one color eight pack.
I got one to give to my techie aide as a present just because I know he’ll like it.
And here’s the regular eight pack:
https://www.amazon.com/Sugru-Moldable-Glue-Black-Pack/dp/B007VXJM58/
So the deal isn’t a great deal as far as price goes, but it’s a good price on the sample pack if you want to see the four different colors or give it as a trial pack to somebody. 
And an example of what you can do with it:
And if you have little kids, or, like me, limited hand control, the tennis ball hack is awesome. You can use Sugru to attach tennis balls to the wall like hooks, but much safer.
https://sugru.com/home-diy/get-your-shoes-under-control
