This charming antique wooden butter mold could also be used as a cookie press. Although it is does not have the original plunger, it would be easy to create your own, unscrew a plunger from another mold, or leave it off as a display piece so that the acorn and greenery pattern could be easily viewed. There are several cracks in the mold itself and in the bottom of the antique container, which is reflected in the price of this piece. 
The bonus mold is too large for this container, but could be used within a larger mold. It measures as a 3.5" diameter, vs the smaller one (3") that fits within the container. Both would easily complement your existing collection and can be used with other pieces. 

If it is intended for actual use with butter or cookie dough, I'd recommend using this site to help you restore it and make food products safe for consumption.  https://www.donnellyfamilyfarm.com/all-posts/scwjnpgvp57ktid0jyqrwzuwwd1kd4  

ALL THREE PIECES FOR ONE LOW PRICE!