Ice Bomb

An Ice Bomb is an attack item in Super Mario RPG: Legend of the Seven Stars. It can be bought only in Seaside Town (before fighting Yaridovich) or can be obtained by using Yoshi Cookies on certain enemies. Mario and his party may also be rewarded with Ice Bombs from defeating Muckles or Machine Made Bowyers. Using it in battle deals 140 points of damage to enemies and deals double damage against enemies weak to ice. If the user has the "Attack Up" effect such as from Geno Boost or the Quartz Charm, the damage output is raised to 210. Some enemies may be immune to ice, though, rendering the item useless against them.

In The Super Mario Bros. Super Show! episode "Koopa Klaus", Koopa Klaus himself uses Ice Bombs to freeze over Santa's workshop. However, the Ice Bombs in question are never seen, leaving their actual appearance a mystery.