The Legionary Smash Hammers (sounds a bit Super Mario doesn't it?) is a 6-piece weapon set, containing three flavours of hammer, ranging from 25mm in length all the way up to 35mm. A set will cost you £5.05.
...this is that same hammer next to a five pence piece. The detailing on these weapons is outstanding, and the fact that it is legible and clearly defined showcases the product's quality.
If you're looking for the pinnacle of detail for your leader, these weapons are a gold-standard example. The detail is insane, and if you used these on bog-standard models, you'd be very hard pressed to find anything fancier for your leader. Ignoring the mildly comical name, Kromlech's Smash Hammers are truly a great hit*.
*That was a bad pun, I'll be going now...