I was going on my 3rd stem on the bike, just couldn't find one comfortable enough and bike shop was about up to their ears with me swapping and trying and they gave me an adjustable. Yes, its silver, ugly, squeaky and won't stay tight. But, it will give them a better idea as to what size and height stem i will need for my last swap.
ps. if electrical tape doesn't work as mentioned above, cheap can of spray paint!