That tiny charcoal grill that Rich and was asking about sounds like the small cast iron table top hibachi grills that were popular years ago. These were small cereal bowl sized cast iron pots with a removable cast iron grid on top. They would take a couple of charcoal briquettes and would do a nice job on small hot dogs or chunks of meat for use as an appetizer for picnic meals. They were cheap and common at the time but I haven't seen one in 20 years. You might try looking a store that sells outdoor cooking equipment or a thrift shop. Now I use the smallest sized Weber Q propane grill.  Larry Z