Christmas gifts for mom and dad?

I need some ideas on what to get for my parents for Christmas. My brother, sister and I have decided just to get a few things for each of them and give them as one present from all of us.

My dad loves to bike ride (trails and road), and has already shown me a jersey he wants. Is there any other bike-related thing I could get him? He also says he needs good glasses to keep the cold wind out of his eyes, but I don’t know where to get them.

We have already gotten my mom a duster, since it takes hours to wipe down the shelves with a washcloth. Over the past years we’ve given her enough chocolate for ten years, so no sweets. She has a ton of cookbooks, and doesn’t really need anything kitchen related. I really don’t know what to get her. Any ideas?
Thanks.