new single daddy with two children ages 15 boy 7 girl BD party ideas

My son was just given custody of two children, and has never had to be totally responsible for a BD party before. His son will be 16 next year in Feb. Daughter 8 in March. Mother will not be in this country for any of this. We have time to get things together but he is concerned. I am suggesting, for daughter, DADDY'S AND DAUGHTERS PARTIES, like hay rides with hot dog roasts after. For his son ICE SKATING PARTY, fancy wrist flowers for the dates and supper after. They live in a mid west college town and I am on the east coast so I can't be there to be of much help. Can you give me some ideas. I am presently working with my senior citizen group as the President, and in the past years with the military worked with teens so I can probably come up with some ideas but at 71 I am not as BRIGHT as I was. THANKS.
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