You can easily make one with a piece of paper and a marker. You make parking spaces on the sheet and write a different sight word in each parking spot. Then, you give each child in the small group a matchbox car. On each turn, you say a sight word and they drive their car into that parking space. Easy and fun!
Here is a picture of the board with a car:
I made five boards with ten words on each board. I used fifty of the most common sight words for kindergarten. You can make your own, too. I suggest laminating the boards.