Paint Slanger

I've thought about this before as it would be extremely useful on some of the old boxes I have to work on. I found this not sure if it will work or not for what we are doing with grub. I'm sure someone out there with more linux fu than myself could figure something out though. I'm also pretty sure that I remember seeing a bootable cd a few years ago that would allow you to boot into usb without using this particular method with grub. I was looking for a way to boot into the SD card slot on my Dell lappy at the time, which btw if anyone had any info on that I would love to know also. Hope this helps.