You have to be Level 15+ then Bandits will start dropping them.
basically on bandits in ayleid ruins or in bandit camps. If you need to find anything go to Oblivion Wiki or Elder Scrolls wiki.
you get one by killing sum bandits in bout any tomb.......
depends what level you are if you are above 10 you might find them in shops if you are above 15 bandits might wear them, otherwise youl have to wait.
daedra, and bandits
You can usually find garlic in house basements, or you can buy them from the ingredients shops and mages guild alchemists.
most enchanted items, in this case the neclace of swords, that you will find in oblivion are random loot meaning that there is no set location generally random items like that are usually found in containers in dungeons and on npc's such as bandits, marauders, necromancers, and conjurers
hero hill, and most bandit camps, all bandits are werewolfs but will only transform around 11 pm on full moons.
All you have to do is level up, (to about level 30 or higher) then go out in to the forests and the bandits might where glass armor, or even deadric once you are a high enough level.
Rockmilk Cave. North of Leyawiin? Google a oblivion map and find the exact location its not far of that beaten track. Loads of bandits and marauders i think that fight each other, then u can loot their daedric or glass that they wear, they also carry a bit of gold :).
depending on your level if your like >15 you can find it on bandits but if your like 10-15 you can go to a in above the imperal city and kill some random guy in there if your fine with paying a fine or goin to jail....if your below level 10 its impossible it will just start appering on some people..bandits, ex... but you can find it everywhere after level 18
once u start get higher in level bandits and random bad guys will start wearing it