What have you done with them? i have the daedric set of armor which i guess is the strongest (except for the helmet and gloves, they keep eluding me ). maybe someone here used them somewhere else? in other items. Im going after my 10 oblivion gate, hence my 10th sigil, i really want to use them

Used sigil stones:

I have 3 items with 30% chameleon, and 4 items with fortify magicka 50%. Also I've made a daedric dagger with damage health 30 pts. (which I've never used), one with fire damage 25 pts, one with turn undead [something] and one glass dagger with 20 sec soultrap. I have a glass helmet with detect life 205 ft and some gauntlets with light 50 ft or thereabouts, and a shield with Shield 20%. I also have some items with fortify speed and strength 10%, but I can't remember if I made them out of sigil stones or not...

There aren't any more Oblivion gates in my game, but I've kept one sigil stone. It's another Damage/Fortify magicka 50 pts.

Have you managed to get a daedric helmet or gloves? or you can only have those by summoning them :S

No, I have a full set of Daedric armor stashed away somewhere. Helmets are quite rare, I think, but everything is possible to find at higher levels.

I only have one sigil stone at the moment (from the Kvatch gate). I used it on my Dremora mace, so now I drain health 10 pts for 5 secs every time i hit them. Kinda funny watching the red stream of life flowing into me every time i hit them...

Hmm, the only thing I can recall using sigil stones for was enchanting items using the +50 magicka ones. I also had a fondness for rolling them down hills trying to keep up with them.

I'm just drop it, coz I don't need any enchanted items...
I don't know why, but.... I just don't need it

Sigil stones seem to be the big kahuna in OB, gauntlets can be found on certain dremora - a helm can be found in the tomb outside of the leyawiin gate (Well, for me it was anyway).