Most of them are just overly optimistic. Overestimating the size/power/destructive power of things that ultimately would be little more effective as weapons than firecrackers (though like firecrackers, more than capable of maiming the handler...)

If you wanted to make such a book properly, you would be best off describing things that you did not invent (or worse, dream up but never tried) but instead things that have actually been used. For example, describe how the Finns used storm matches to make Molotov cocktails (which they used to great effect against Soviet tanks, though modern tanks will not be vulnerable to those sort of attacks. That should also be mentioned prominently in this hypothetical "Cookbook-done-right.")