Friend’s oldest son’s Bar Mitzva is this Shabbat and shul might close. Please help us lift their spirits!

I have no idea how many people are going to see this or if this is even possible, but I was thinking if everyone could send either a card or a video message from all over the world, it would go a long way to lifting their spirits. If you have any other ideas, I’m open to them of course. I’m just so heartbroken for them and all the preparation their son has done for his big day 🙁