For less than £14, you can get your hands on this Centaur 12 Pack of Steel Tip Darts. For just £13, you can get your hands on 12 high-quality dartsCredit: Centaur This 12-piece set is available ...

and especially handy if you have pets who might do themselves harm with steel tip darts. Even if you just used it a few times a week, the £20 set would soon work out to a few pennies per use.