Love Hate Punch is a punching bag that changes color gradually as you punch it, by artist Stefan Gross. I see it as turning white from red as you punch it, reflecting how your red anger has been drained.Via BB.

Becky Stern

Becky Stern

Becky Stern ( is a DIY guru and director of wearable electronics at Adafruit. She publishes a new project video every week and hosts a live show on YouTube. Formerly Becky was Senior Video Producer for MAKE. Becky lives in Brooklyn, NY and belongs to art groups Free Art & Technology (“release early, often, and with rap music”) and Madagascar Institute (“fear is never boring”).

  • Don.

    Change that to color shades of red depending on how hard the bag is hit or use eink to display some sort of measurement value around the bag. Da-ta! All the gyms on the planet buy your bag.

    We gotta eat to Make after all.

  • yesnoyesno

    im not sure about the anger drain thing. these folks seem to be smiling.

  • chris

    Don that’s a great idea!

    You could do something like only record body blows or punches hard enough to trigger the counter. There could be limitless options for creating training regimens and whatnot.