Prepare a grill for medium-high heat. Meanwhile, on a long tray, arrange the crushed cheese puffs, corn kernels and tortilla chips in rows.
Place the corn over the direct heat of the grill and cook, rotating, until there are grill marks on all sides, 8 to 10 minutes.
Brush each ear of corn all over with the mayonnaise, then roll in the snacks to coat. Spritz with lime juice and serve warm.