Skeuomorph

skeu·o·morph
/ˈskyo͞oōˌmôrf/
noun
noun: skeuomorph; plural noun: skeuomorphs

an object or feature that imitates the design of a similar artifact made from another material.
"the pottery box with a square lid is a skeuomorph of a twilled basketry container"

Computing
an element of a graphical user interface that mimics a physical object.
"note-taking apps offer skeuomorphs of yellow legal pads, squared paper, ring binders, etc."