The ornamental design for an icebarrier for drinkingvessels, as shown and described.
1.-9. Ice barrier for drinking vessels
1.1 : Perspective
1.2 : Front
1.3 : Right
1.4 :Top
1.5 : Enlarged
A thin ice barrier that slots onto the rim of a drinking vessel, holding the ice and other solids back from the drinker's mouth, thus enabling easier drinking of the liquid; also effective for other solids in a hot drink.