This is the law for the UK
I see no mention of enormous HeMan-esque swords! YEAH!
1. Section 141 of the Criminal Justice Act 1988 (offensive weapons) shall apply to the following descriptions of weapons, other than weapons of those descriptions which are antiques for the purposes of this Schedule:
(a) A knuckleduster, that is, a band of metal or other hard material worn on one or more fingers, and designed to cause injury, and any weapon incorporating a knuckleduster;
(b) a swordstick, that is, a hollow walking-stick or cane containing a blade which may be used as a sword;
(c) the weapon sometimes known as a "handclaw" , being a band of metal or other hard material from which a number of sharp spikes protrude, and worn around the hand;
(d) the weapon sometimes known as a "belt buckle knife" , being a buckle which incorporates or conceals a knife;
(e) the weapon sometimes known as a "push dagger" , being a knife the handle of which fits within a clenched fist and the blade of which protrudes from between two fingers;
(f) the weapon sometimes known as a "hollow kubotan" , being a cylindrical container containing a number of sharp spikes;
(g) the weapon sometimes known as a "footclaw" , being a bar of metal or other hard material from which a number of sharp spikes protrude, and worn strapped to the foot;
(h) the weapon sometimes known as a "shuriken" , "shaken" or "death star" , being a hard non-flexible plate having three or more sharp radiating points and designed to be thrown;
(i) the weapon sometimes known as a "balisong" or "butterfly knife" , being a blade enclosed by its handle, which is designed to split down the middle, without the operation of a spring or other mechanical means, to reveal the blade;
(j) the weapon sometimes known as a "telescopic truncheon" , being a truncheon which extends automatically by hand pressure applied to a button, spring or other device in or attached to its handle;
(k) the weapon sometimes known as a "blowpipe" or "blow gun" , being a hollow tube out of which hard pellets or darts are shot by the use of breath;
(l) the weapon sometimes known as a "kusari gama" , being a length of rope, cord, wire or chain fastened at one end to a sickle;
(m) the weapon sometimes known as a "kyoketsu shoge" , being a length of rope, cord, wire or chain fastened at one end to a hooked knife;
(n) the weapon sometimes known as a "manrikigusari" or "kusari" , being a length of rope, cord, wire or chain fastened at each end to a hard weight or hand grip;
I see no mention of enormous HeMan-esque swords! YEAH!