We have featured several hacks involving beverage corks used for bike related purposes and in a recent post featuring the creative use of some wine and champagne corks I tossed out the question of whether or not people had run into uses for bottle caps when it comes to bike related hacks. We received a few comments and emails which inspired me to come up with something I have not seen before.
Reader Steve alerted us to an Instructables mirror hack that involves a bike spoke and a beer cap. Some think that mirrors for riding are nerdy, and they might just well be, but I have been riding with one (Cycle Aware) for years and love it.
Reader T.S. let us know that Niner Bikes sells a headset top cap piece.

Reader Michael came up with his own stem bottle cap hack. Here is some text he wrote and a set of pictures to match -
My bike has a quill adapter post that allows me to use an unthreaded stem. I noticed last winter that water pooled in the top of the post and it started to corrode the top of the stem bolt. My easy fix was to take a beer bottlecap and glue it over the top of the post. It makes a fairly watertight seal and I haven't had any issues with it at all.
I pulled it off today to take some pics for BikeHacks and it looks just like it did before I put it on. Reapplied some Gorilla Glue and back on it goes. A local brewery in town even has plain stainless bottlecaps that match the rest of the steel and aluminum parts on my bike. I keep intending to try to remove one bottlecap in absolute pristine condition (no dents or creases) and replace the one that has been there for most of the last year. I haven't succeeded yet but I'll keep trying.

And Reader Baz clued us into the fact that The Bicycle Escape turns bottle caps into head tube badges.

This all got me to thinking about a related but simple hack that I had not seen before - simply cutting up a beer can and using it as a bike decoration. To experiment I took a discarded envelop and used it to measure around my seat post tube. I then taped it to a Budweiser can, used a utility knife to cut the top and bottom of the can off, and then used some metal shears to cut it to size.

I would advise exercising caution when cutting as the aluminum can be sharp. To that end, once I had the can cut to size I covered all of the edges in Scotch tape and then zip tied it to my seat tube.
My Globe actually has a head tube badge holder on it that would have worked great as seen in this picture submitted by a reader.

But long ago I took a patch of high adhesive reflective tape and put it in the badge holder. This Bud can was a good test just to see how the process worked and when I do it again in the future I will pick a beer that is less likely to be associated with NASCAR.
If have beverage container related hacks feel free to email us for posting.