Here's the problem. Most hollow-handle knives have the blade joined to the hollow handle by some VERY weak means. The hollow-handle gimmick usually SERIOUSLY compromises a blade's strength.
Your options are probably as follows. (And there's no reason you can't take more than one.)
1. Get one of the $300 one-piece-hollow-handle knives mentioned above. Great, but expensive.
2. Get a VERY inexpensive, and tough, Cold Steel Bushman. These are unlike most hollow-handle knives, in that they are made of a single piece of steel; the handle part is just rolled around into a tubular configuration. I've heard of people using crutch tips to close the back of the handle. These have stood up to spectacular abuse, and can be had on eBay for, what, $20 each? For $100, you could get 3 or 4 or 5 of these. Then you could afford to drop one in the river accidentally, trade another, and still have a knife to use.
3. Do what most people end up doing, and just get a tough knife without the hollow-handle feature--and consider a sheath with a pouch for any little survival gadgets you want to keep with your knife. (Ranger Knives, for example, would fit this description--incredibly strong, and with capacious sheath pouches. You could fit a Leatherman multi-tool AND a few other basic survival things into it.)
4. Go to Harbor Freight Tools and order their 7"-bladed, saw-backed, hollow-handled "survival knife". I think it costs less than $10. It's exactly the look you're going for, and even if the steel is bad and the blade isn't held onto the handle too well, you can use it as a tent stake or display piece if you like. There are legitimate uses for "looks" knives like this--say, as a movie prop, or for giving to a kid who's way into Rambo, old enough for a knife, but who maybe isn't going to need a really quality blade that much, and he can get all of his mistakes like throwing it, sharpening it on an electric grindstone, etc. out of his system before he gets a knife that would be more of a shame to abuse. This knife would work for that--and won't break your bank. It'll leave you enough money out of your $100 to buy a Ranger RD-6 or -7 on the used market, or a handful of Cold Steel Bushmen.