Check out this video of The Coolest Band Ever, The Maestrosities. See if your heart stops about 1:50 mark when they juggle and pass 6 ukuleles. Mine did. Then I realized they're prolly not vintage Martins.
The Maestrosities also have some upcoming NY shows. More info here.
UPDATE: Jason from Sonic Uke sez "it's only two but we play them too." At least they didn't drop the towel.