The phrase "a plastic model of" is correct and usable in written English.
It can be used when describing a physical representation or replica made of plastic, often in the context of hobbies, crafts, or educational materials.
Example: "He displayed a plastic model of the Eiffel Tower on his desk."
Alternatives: "a plastic replica of" or "a plastic representation of".
We built a plastic model of the Batmobile in the garage.
The US and French scientists started with a plastic model of the skull.
Equally literal is "the elephant in the room" – a plastic model of a white elephant behind George's chair.
Holding a plastic model of the twins' fused skulls, Dr. Goodrich pointed out the two large vessels that will be the focus of the operation.
When Rockwell International was trying to build political support for the proposal to build the space shuttle, it approached him to manufacture a plastic model of it.
On the same table was a plastic model of an existing Apple headphone an EarPod the size of a golf driver.
Evidences for ancestor cult practices dating to the 7th century bce were first discovered at Jericho in Palestine, where several skulls were found to have been deposited in a separate room, some of them covered with a plastic modelling of faces similar to that found on the ancestral skulls preserved by present-day agrarian peoples of South Asia and Oceania.
The sculptor Naum Gabo (1890-1977) had work in the original show too; here, he is represented by a plastic model for "Column," which was made of glass, first in 1928 and again in 1938.
When I showed her a small plastic model of a wolf (I keep a variety of such objects, for perceptual testing, in my medical bag), she exclaimed, "A marvellous animal!
I've Shakespeare to encourage me too - a naff, plastic model of him, with a nodding head, bought from the Huntingdon Library in California.
Instead, Tepper made a full CT scan of Jayla's head, and from that information arranged to have 3-D-printed a detailed plastic model of her ideal jaw.
