A friend of mine is getting married next week and I am confused. Wrist watch or a convection oven with air fryer?

So, here it's not customary to give money when attending a wedding from groom's side. So, a friend and I came up with the idea of chipping in to buy a gift. A lot of the other friends are suggesting two wrist watches but I personally like the idea of a convection oven with air fryer. What do you guys think? Leave other suggestions if you have any!