The flyer for Josh Jones' Injunuity art show depicts a head-dressed Native American cartoon character gleefully gassing an undersized hotrod beneath the tagline "Start your Injuns!" A throwback to the comically bizarre work of Ed Roth and R. Crumb, the illustration is indicative of the unhinged spirit of the event Jones has been assembling for four years during Gathering of Nations.

Sometimes when you think big, you have to think small. No, that's not a quote from Yogi Berra. It's the formula gallerist Cassidy Watt employed to curate In Microscale, a show of 150-odd pieces from about 45 artists, now in its second annual iteration at Metallo Gallery in Madrid. The criteria: create pieces of art that, if 2D, have a surface area of no more than 36 square inches. "I didn't want to tie the artists’ hands behind their backs. You could do a 1-by-36 if you wanted to," he says. If the work is 3D, well, just keep it small.