In the climax of 2011's Thor, when Loki ( Tom Hiddleston) is attacking Thor (Chris Hemsworth) on the bridge to the Bifrost, Loki's spear becomes wedged in the floor of the bridge, and he spins around the stuck weapon and kicks the God of Thunder in the chest.
One such example, which has Loki dressed in bondage gear and was illustrated by Australian artist Celestialess, was shown to Hiddleston during his most recent appearance on The Graham Norton Show.