Barrel in Playmobil-size with detachable lid.
Remix of zanzastoys design (scaled down somewhat and improved the lid).
There is a printable oilspill that fits this barrel: https://www.thingiverse.com/thing:2752356
Glue the two parts of the lid together, the small part right in the center of the bigger part.
Print in different colors and glue small warning signs (eg. "flammable") on the barrel for added realism.