I'm almost 30, but I consider myself the younger generation, I like my glass like I like my guns, clean. My friends over 30 still use rubber grommets and water that makes you vomits. I also support the local glass blowers(there's some good names around me) whose work is easily 100 times better than your adult bookstore spoon, looks better, lasts longer, easier to clean because of the proper sized holes.
Nobody complains when I bring one of my bongs over, all compliments.
I guess my point is: Would you rather smoke mexi brick with moths and urined down corona on them, or some top notch quality nugs, now how about in a black tar plastic and rubber bong, or a nice clean all glass bong, would you rather drink beer in a can or out of a bottle? The taste is just better, IMO, same with using a non-butane source of ignition/combustion/vaporization.
I'm 38 and still enjoy my 21in Toke Master Bong and simple glass pipe....
When I get some free time I'm going to work on some nice wood stuff. Dugout holders are one I hadn't thought of. I just don't know folks that use them anymore
There is a lack of two things I think there is a niche market for though. Toker trays. Just pretty small wooden lap trays to hold your items on.
And bowl holders. Just like a pen holder but set to hold 3-5 GonG bowls when not in use.
I wouldn't write to Dragons Den just yet buddy, most online headshops carry the items you mentioned, check out everyonedoesit.com.