That is a miniature version of something

simple past tense and past participle of miniaturize

The act or process of miniaturizing or making smaller. / Something that has been miniaturized or made smaller.

Greatly diminished size or form; reduced scale. / A small version of something; a model of reduced scale. / A small, highly detailed painting, a portrait miniature.

Smaller than normal.

(transitive) To make smaller than normal; to reproduce in miniature.

plural of miniature

Miniature size; tendency towards miniature size. / Tendency towards detail.

To design or construct something on a miniature scale.

present participle of miniaturize