I had it on my bike, it work pretty well, not sure how plausible it is to have a bottle in the bollocks after going through a speedbump.
To begin with I couldn't make it out and thought it was facing groinwards. At the least it looks distracting.
@Wrongcog started
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To begin with I couldn't make it out and thought it was facing groinwards. At the least it looks distracting.