Rina, I did that with ds#1 at some stage when he wanted it all the time, we limited it to bedroom. I haven't got to the stage with ds#2 "OO" bears but he does have them around the house (sucks on the arms of them) but not to the same extent as ds#1 with a Dummy.
Stacy, ds#2 has 8 "OO" bears but only 2 are ever accessable (they get washed after 24hours or less, so rotated) & now he has got used to that, although at one stage a while ago he found 5 & had them all, but these days if he finds yesterdays ones & he has 2 he will work out which 2 he wants & puts the other 2 in the washing hamper. He definitely wants them when he is OT/upset (although not at childcare, where he won't take them with him)
BTW "OO" bears came about because I used to tell him I'd get him "new" bears at bedtime, so he started asking for "OO" bears & now he asks for "clean OO bears" so OO bears have stuck as their name. They are the brown bears you can get in Ikea, so it really didn't cost much to get 8!... He started sucking on one when he first rolled over & it was on his play mat it replaced a dummy when he was 6mo as a prefered sucking item.