I'm wary of offering contest subjects that may be a meme or done elsewhere, and Tron Dog is a bit of an edge case, but it's the best thing we've got going this week. Prepare for transport to the 'Shop grid.
First, Tron Dog's provenance. Luke found him, sitting in his cute little cardboard cabinet on Thursday. The image in question dates to last year, though it popped up on someone's tumblr earlier this week. I checked knowyourmeme.com and no Tron Dog is listed. But there is this video from 2011 (which a couple of commenters posted), and this Twitter account, this Facebook group, and he showed up on Cheezburger once, all of which suggest this is a gag with some tenure. It just went dormant before becoming a full-bore meme, kind of like a dwarf star that failed to ignite.