The bud vases were an aftermarket item, popular in high-end closed cars in the 1920s and early 1930s. They would be period correct for your '32, but are not an original Chevrolet accessory, so they would result in a point deduction if you had the car judged. If that's a concern, you can always remove them for judging.
There are quite a few collectors of the old bud vases still, and you do see them quite often in Hershey. In addition to clear glass and crystal, they were also produced in porcelain, carnival glass, ruby glass, and uranium glass (which has a vibrant yellow-green almost neon hue). There is a lot more information available about them including a couple of collector's books. Just Google "automobile bud vases".
And, by the way, I will have a pair of them for sale at Hershey in spaces OBE 24 & 25.
All the Best, Chip