Blending tobaccos can be "out of stock" too often. You can start with a few that are usually available, like Five Brothers which is straight up burley, unflavored black Cavendish which is often available, and cigar leaf. The others, just keep looking and jump on them when available. Also, size up blends you have as condiments. Some of the bag tobaccos (too often disdained) are quite good like D&R Two Timer, burley toasted twice, that makes a good condiment, or even Semois the Belgium variant. Any predominant Virginia can be used, or burley, or dark-fired, as condiments. Once you get off the railroad tracks of blends, you've got the "say." Do as you will! I like a pottery bowl from Jugtown to mix a pipe bowl or three, but for starters, any old cereal or stainless steel bowl with do. You'd be amazed at how well you can do. Often small quantities and just one or two condiments are the best bet. Three or more requires a lot more trial and error and work, but is good if you have that time.