In large games of Impetus it can be difficult to keep track of which units are in which commands and whether they have yet been activated, so I made these markers from pennies (for weight) sandwiched between plastic counters and stuck with superglue. I have to admit that I'm not very good with superglue. Regardless of how careful I try to be - and I'm well aware of the dangers - my fingers seem to attract it like a magnet. Each unit begins with a colour indicating its command. Once activated you turn them over to show black or white for the two respective armies. At the end of the game turn you turn them all back again.
Charity shops can be a cheap source of old children's games worth looting for various tokens. An old Lotto game (£1) realised a set of plastic numbers which will be useful for random activation of units in games like Rifle and Kepi.
A pocket game of Othello (50p) provided some small counters which are white on one side and black on the other. These could be useful for Crossfire where pinned (white) can be converted into suppressed (black) by simply flipping them over. An alternative would be to use some Liquorice Allsorts but that would require conversion work.