I do that all the time. For example....Need a 1-1/2" x 1-1/2" piece for a 3-D cutting? Glue two pieces of 1" x 2" lumber (really 3/4" x 1-1/2") together, trim to length and GET BUSY!! The glue line is visible only to you and even then, only in certain areas of the piece.
Rog