Ideas for 11th Birthday Party?
No scheduled activities at all is usually a pretty good idea, but if you want some, maybe charades with really weird subjects, eg. catching butterflies with a tablecloth. I hope this helps you!
11 Year Old Birthday Party Ideas?
A joint party will probably be quite hard, so I suggest a party for each of them, in different rooms. for your daughter, maybe a pajama party? Maybe a cupcake, pizza or taco/burrito bar? (this could work for both of your kids). Hope this helps!