I have been playing around with making countdown videos that we run before the service begins at my church. I'm sharing 3 of my latest here. We use a 3-minute countdown but it appears that most use 5-minute videos, so I've included both. They are too big to load here, so I've put them on my Google drive.
5-minute waves countdown video
3-minute waves countdown video
3-minute Palm Sunday countdown video
Let me know if these are useful - if so, I'll share more of them.