Ice Wand

The Ice Wand is a magic wand created by Chlorhydris for the purpose of turning people and creatures into emotionless zombies, which made its first and only appearance in the cartoon show episode "A Hug For Grouchy". She kept it in her scheming chamber in her castle, which she keeps at the same cold temperature as her heart. According to Papa Smurf, its power has no effect on infants, particularly Baby Smurf.

Mainstream Smurfs Media
On the day she went out to use the wand, which was Hug-A-Smurf Day (a day that both she and Grouchy Smurf hate), Chlorhydris found herself too unhealthy to actively pursue any targets, so she found a nameless fairy out in the woods who was generally friendly and used the wand on her to make her an unwilling pawn that would use the wand to turn the Smurfs into emotionless zombies. Soon the fairy went to work fulfilling her mistress' desire and attacked the Smurfs with the wand.

Papa Smurf found out about the wand the fairy was using and read from one of his books that its power can only be broken if the holder of the wand was given a great big hug by a confirmed grouch. Grouchy, realizing that he was a confirmed grouch, tried to escape doing it, but Papa Smurf warned him that if the power of the wand is not broken by sunset, his fellow Smurfs will remain without feelings forever.

When the fairy with the Ice Wand turned Papa Smurf into an emotionless zombie and then was distracted trying to do the same to Baby Smurf without any success, Grouchy bravely reached out and hugged the fairy, freeing her from the power of the wand as well as everyone else that the wand had struck. The wand then rocketed to Chlorhydris' castle and destroyed itself when it struck a table in the scheming chamber that the evil witch was brewing her Heart Of Ice upon.

Hero: The Guardian Smurf stories
In the HERO: The Guardian Smurf story series, Chlorhydris threatens to use the Ice Wand on either Smurfette or Wonder when she kidnaps both of them on Hero's first wedding day in the story "Hero's Wedding".