This is a question that has been handed down for generations. Do you toss it? Recycle? Make a fancy pot holder out of them?
Well if you have a 5 month old puppy following your every move, this question is easily answered. Leave it on the floor and let her have into it.
I changed out my old, beat up grips last night and put the old ones on the coffee table and my dopey dog came over and took them both off the table and over to her bed. she had a grand ol' time chewing on one, i think its loosening up another one of her baby teeth.

So, if you have a dog that likes to eat anything, donate your old grips to a better cause. They will appreciate it, and the corners of your furnature will as well.

Even if they will eat the grip? Why let a dog ingest rubber?

ive seen many dogs eat many inedible objects. i think theyre made for it

Um, handlebars don't have all that much "girth"......so, um, maybe perhaps this would work only with certain "special" individuals?

I've taken mine to a local gas station for proper disposal.

George

Put them on the shifter in your car. Looks great on the steering column mounted shift lever and they are grippy too and they never get hot in the sunshine or cold in the winter.

-Ryan

you can use them as... um... naw that pretty much covers on what to do with old grips.

Trowing them in the trash is no big sin.

Youre right man, in work the vet opened up a cat and found three kitten feeding teats, a month or so later it came back with 14 of them stuck in its intestines, turns out the cat couldnt resist the chewy rubbery goodness!

Use them as chainslap chainstay guards. Slice them lengthwise and zip tie them to the chainstay.