We assume it was one of the gecko kinds that live in the Mediterranean, presumably the Mediteranean house gecko (Hemidactylus turcicus). So, when we were drinking coffee on the terrace the next morning, we got the idea that a vector silhouette of the gecko might be interesting to some of you, and here it is!
We have placed the silhouette in a rectangular frame that touches it in three points, so you can cut it out of some material if you want to.