What household items made of helium?

Helium is typically not used in common household items due to its cost and specific properties. However, it can be found in party balloons, which are often inflated with helium to float. Additionally, helium is used in some scientific instruments and high-tech equipment, like certain types of cryogenic coolers, but these are not typical household items. Overall, the most recognizable household use of helium is in inflated balloons for celebrations.