A fishing device for indicating a lure strike from fishes is disclosed. The device may be a strike indicator that may include a hollow body filled with trapped air, where the strike indicator includes a tab having an opening formed therein and a grommet made from a hard, durable material seated in the opening. Alternatively, the device may be a fishing lure that may be attachable to a fishing hook and having a hollow body filled with trapped air and an attachment mechanism for attaching the lure to the fishing leader and/or fishing line. For example, the fishing lure may be a fishing fly having a hollow body filled with trapped air. In either embodiment, the device may be made from a lightweight, resilient material, for example ethylene vinyl acetate or other similar thermoplastic material. Further, in either embodiment, the hollow body may be substantially sealed with a substantially water tight seal without any inlet or outlet to the hollow body, such that substantially no liquid can displace the trapped air.