A wood burning kit, a saw, sandpaper, and a 1.5inch thick branch from a tree is all you need to make a nice set of runes. When carving each, you should invoke them. Some people add their blood to each rune or add a few drops to red ink or a wood stain and paint it into the carvings made to connect them to them.
As for tarot, you can make your own as was stated, or make your own system of cards. A good friend of mine, Dawn Silver created her own deck system based off gemstones that were published and can be purchased. So creating your own deck is also something to consider, and who knows, it might catch on =)