William Shatner Pays Tribute to Leonard Nimoy With Selfie Collage

William Shatner asked his Twitter followers to take selfies of themselves doing the Vulcan salute Aug. 1, and it turns out he was asking for a reason: The former Star Trek star posted a photo of the late Leonard Nimroy made up of all the selfies Monday.

Shatner made the tribute as part of a task for GISHWHES — or, the Greatest International Scavenger Hunt the World Has Ever Seen — an annual scavenger hunt organized by Supernatural’s Misha Collins. See the final result below.

This article originally appeared on EW.com.