Two years ago, artist collective Postcommodity subverted the U.S./Mexico border by setting up giant “scare-eye” balloons, the kind typically used by farmers and gardeners to deter birds, along the border between Douglas, Arizona, and Agua Prieta, Sonora. The installation sent a strong message about walls and borders while also reclaiming the eye symbol’s Native origins. This week, three members of the collective — Raven Chacon, Cristóbal Martínez, and Kade L. Twist — will stop by the Walker Art Center to discuss the piece, titled Repellent Fence, and how they got communities involved in the project. The opening reception for the show takes place at Bockley Gallery from 6 to 8 p.m. Friday, March 10, and an artists’ panel will be held at 6 p.m. on Saturday, March 11 at the Walker Art Center. Both events are free.