coworker gifts

So,
A few people that I work with some that are coming and some that are not have sent gifts to my house. Am I supposed to say something that I got it? Or do I just wait when I send a thank you?

I would just mention to them that you got it. Something like'X i recieved your gift, thank you so much, I'm sad you won't be able to make it, but your gift is appreciated. I'll be sending out thanks sometime after the wedding but wanted to thank you in person.'

I would send a thank you note now and then one after the wedding. They work with you and they know you got it so might as well mention it