I found both of these in pocket change but they look so different in all there looks like there from different mints
Different years, different Mints, different dies, and circulation will give coins 'different' looks. All your nickels are normal coins.
Be aware that the hobby has sponsored a program called the Great American Coin Hunt and it is taking place this month. Many dealers and individuals such as myself are dropping some older collectible coins into circulation. While a 1954 nickel is not particularly unusual to find in circulation, just be aware to keep your eyes open as you may find other older collectible coins in your pocket change this month.