I was making an improvised weapon fighter, and ran into an issue that annoyed me, the lack of any way to put magic weapon enhancements onto improvised weapons without a massive dip into another class. Generally a dip large enough that you're actually a Magus/Warmage/Whatever with like a 2 level dip into fighter and lots of regrets...
Then I found out about Deliquescent Gloves and Helm of Brilliance, and hit upon an idea. These items grant any weapon you hold the Corrosive or Flaming abilities (respectively) and pricing breakdowns seem to come out CLOSE to the cost being the same as placing the enhancement on a weapon. Actually cheaper, since they seem to cost out at 2000 gp like a +1 weapon, but to ACTUALLY put them on a weapon you'd end up spending 8000 gp, because the weapon needs a +1 enchantment AND the Corrosive or Flaming ability (+1 equivalent) so the weapon would cost as a +2 weapon.
Fluff: Drogen was brawler, and while he carried a great axe, he drew a certain perverse pleasure from killing enemies with things like Chairs, Tables, or their own cooking pot. But, no matter how skilled he became at using random objects as surprise weapons, he coveted the power of enchanted weapons.
A few times, he actually approached wizards and inquired about the possibility of enchanting non-standard weapons. But, though a chair can be a masterwork, no wizard would enchant it. Most thought he was joking, at first. And as he persisted, they took offense.
'I am ABOVE such foolishness' 'This is an insult to magic' and 'Be glad my entire clan does not call a blood feud upon you for this frivolous stupidity!'
And besides, what is the point of using improvised weapons, if you have to CARRY THEM WITH YOU?!
So, Drogen gave up, and carried and enchanted axe for when he needed it, and only used weapons of opportunity when it wasn't to great a handicap.
But then, one day, he found an answer. A pair of Deliquescent Gloves came into his possession, and he discovered something. Any weapon in his hand gained an aura of acid, even unconventional weapons.
So, he sought out a new wizard. "Make me some gloves, like these, that will grant any weapon I wield greater accuracy and power..."
Crunch:
Gloves of the Improviser
Cost: as effective weapon bonus, +1310gp
Gloves of the Improviser are enchanted with weapon enhancements. They grant these to any weapon wielded provided that the weapon is not already magical, and that the enchantments a legal for the item.
So, Gloves of the Improviser +3 will grant any weapon a +3 enhancement. Gloves of the Improviser +1 Keen will grant a slashing melee weapon +1 Keen, but grant a bashing weapon or a bow nothing.
The enhancements on the gloves are limited to lower than normal enhancements on a weapon (enchanting gloves with weapon enchants is less effective than enchanting a weapon directly) so weapon bonus is capped at +4 and total effective weapon bonus is capped at +8, so you can do +3 vorpal but not +4 vorpal. As with a normal enchanted weapon, the gloves must have at least a +1 bonus to have a special quality.
Creation: Craft Magical Arms & Armor, Craft Wondrous Item, Spells necessary for any special qualities, Cost as effective weapon bonus +655gp
