Boyfriend Birthday Ideas

My boyfriend’s birthday is coming up and I really want to do something special. Every idea I’ve had has either not worked out or he went and bought himself not knowing I was planning on surprising him. I am out of ideas and have two weeks to figure it out. Any help is greatly appreciated!

When he first got together we discovered that our favorite thing to do together was to target practice. Usually with pistols but sometimes much bigger guns. He gave me his super nice electric headphones so I was going to get him another pair so that we could both have some instead of him using the ear plugs. He went and bought himself some. My second idea was to have the keychain he had broken a long time ago fixed. He thought he’d lost it forever but I went looking and back tracking and I finally found it. It was his sons first necklace that his grandmother (who is now passed) had given him. But after going to 7 different jewelers I’ve realized it won’t work. The way that it is made, if they tried to put it on something again, it could crack. I can’t risk that so I’m stuck.