I've been after one of these for a while, but have struggled to find one I liked at a bargain price.
North India, Punjab
Kidarite Hun rump state, "Kotah Kula"
Mid or late 400s AD
Stylized Shiva standing before Nandi bull (imitating Vasudeva)
Standing king mostly morphed into "Kotah" tamgha, cluster of dots (sun or lotus flower?) to left

Although the Kushan empire was reduced to little more than a tiny tributary state by the arrival of the Sassanian governors in the late third century, their numismatic legacy left an undeniably huge impact on Indian numismatics that was still evident in the middle ages. The Sassanian hegemony in India was subjugated by the horde of Kidarite Huns from central Asia in the early 5th century, and the Kidarites in turn were subjugated and nearly annihilated by the Hepthalites when they refused to pay tribute to Shah Peroz and his Hunnic allies. Their central government and most of their population wiped out, small Kidarite kingdoms persisted in parts of northern India until about the 6th or 7th centuries. The Kotah Kula principality is one such state, almost completely unknown except for their coins.
Kotah Kula coins are quite common and not expensive, but finding one with clearly struck figures and well-centered can be tough on a sub-$10 budget. They come in a wide range of styles, from fair copies of the original to disjointed lines.