When making cocktails at home, the full kits are helpful, but never a necessity.
For bar spoons, you can swap them with a normal spoon, or a chopstick!
Fancy ice mallets for crushed ice can be replaced with a meat tenderizer.
No shaking tin? Grab that mini blender or protein shaker!
No cocktail strainer? Simply stack a smaller cup/glass on top of your mixing glass, and pour your cocktail.