Perhaps the most common product encountered from the "Radium Craze" that swept the US and Europe during the 1920s. The newfound power of radioactivity was viewed as invigorating providing health and energy to a dull and impotent life. These Revigators were lined with Carnotite Uranium ore which charged the water in the crock with Radon-222 from the decay of Radium-226 in the ore.
Radiopharmaceutical "Pig" (Present Day)
A pig used to store capsules of Iodine-131 to treat diseases of the Thyroid. Like the Molybdenum-99 above, this I-131 is a short lived Fission Product, sourced from Highly Enriched Uranium fission targets in a high flux reactor.
"Moly Cow" (Present Day)
The guts of a Molybdenum-99/Technetium-99m Generator normally containing many Curies of HEU reactor produced 99Mo sorbed onto an Alumina column. These are lowered into a Lead or Depleted Uranium shield during use, and saline is used to elute out the 99mTc
Cesium/Barium-137m Cow (Present Day)
This cow for producing short-lived Barium-137m (m for metastable, an effect where a nuclear decay charges up an otherwise stable nucleus with excess energy, analogous to atomic phosphorescence, the nucleus will then return to the ground state by emitting the gamma rays over a predictable time scale). These are used in classrooms and teaching labs for demonstrating radioactive decay and are similar in operational principle to the Mo-99 cow above.