76 links to products have been added on 21 ideas about #cool.
  1. I found this natural self-cooling clay water bottle on eBay.

  2. Like this?
    https://chillwithhost.com/products/10012?

  3. There’s also this!
    https://scandinaviansidebike.dk/dogs-corner/

  4. You can also use this USB shoe foot cooler with your ordinary shoes.
    https://www.japantrendshop.com/thanko-usb-shoe-foot-cooler-p-1449.html

  5. It already exists.
    https://shopbobbys.com/products/fusionbrands-buttereasy-butter-spreader-and-butter-stick-holder

  6. sunnyjim

    This clear, color-changing lightsaber umbrella is so cool.
    https://www.ebay.com/itm/201461669119

  7. Here’s another one that’s perfect for outdoor survivalists.

  8. Mr N

    Check out these drinking glasses with a liquid-activated colour-changing feature.