The most unique pet we ever owned was a makech (? not sure of the spelling or pronunciation) bug given our daughter by an aunt. In Mexico, rural children catch this large cockroach-like beetle, which derives all its nutrients from damp rotting logs. They then super-glue little beads and bangles onto its shell, including a tiny gold chain resembling a leash, and sell them for profit to visitors and tourists. By day or evening, you take the bug out of its terrarium of wet rotting wood and pin it to your latest outfit by its gold chain, where it will casually stroll about your arm and shoulder and neck like an animated buggy brooch!