I've often given Christmas items out of season! They always get a lot of attention and are well received.
One of the showers our family has had the most fun with, is months, seasons and occasions. Each guest invited is given a month, or season or occasion (ie Easter, Christmas) that they are to use in choosing their gift.
So, if Aunt Susie always gives a crystal vase, any month will match!
The first time we did this, we were nervous .... what would they think? what would they get? They had so much fun with it and my 90 yo Aunt was thrilled with the idea and really went along with it. Some creative juices got flowing and it made for fun at the Shower!