Travis Barker has marked the end of Blink-182’s Australia and New Zealand tour by sharing a photo of his and Kourtney Kardashian’s son. The drummer, 48, took to Instagram to post a photo of Rocky Thirteen’s tiny foot resting on his drum set – with the four-month-old only previously seen with Travis and Kourtney in an image she posted to her social media. Travis’ tour-ending photo dump also saw him playing drums and showing off his full-body tattoos, with the rocker captioning the set: “Tour was over, we’d survived.” Kourtney also commemorated her time on the road with Blink-182 and her and Tra…