Sure. From distributed.net, they have something called a personal proxy. It's the same thing that Bok runs that people connect to. Download it on your laptop. Configure it to point up to the d.net servers (default) or to Boks servers. Then, configure your clients to point to that laptop (or other server, etc). Everything is lovely.
If they can't access your laptop, set one of them as the main proxy machine, and sneakernet from there to the laptop, and back.