Groomsmen gifts

This goes back more years than I care to remember, but the best groomsmen gift I ever received from the several weddings I've been part of was a very nice "men's shaving kit travel bag" with my initials embroidered on it. I continue to use it whenever I travel now.
You can find some very nice leather bags on Amazon.com for $40-$60. The embroidery shouldn't be much.
Your groomsmen will remember you and your bride whenever they travel.