50th birthday gift ideas for him: http://www.findgift.com/occasions/birthday/50th-birthday/him/#b It is a pretty cool website but I only glanced at it.
It is important that you know what your dad likes. Maybe you can ask his closest friends and collect a whole bunch of ideas and then decide which one suits your budget.
I've been using Pinterest for a long time now and it's such an amazing site to go to for great stuff like this! I found the perfect link for what you're looking for here: http://pinterest.com/msphotoshooter/50th-birthday-party-ideas/
When I'm looking for first birthday party ideas, the best place that I start looking are the websites of the children's characters that one year olds like. Theses are all full of wonderful ideas
There are many great places to buy gifts. You can find a great 50th birthday gift at linens forever site, or any other similar sites for personalized gifts.
the best place for a twins 1st birthday is Chuck e cheese
What about a piece of jewelry.
The best idea is making your daughters birthday in those places that rent their place and prepare the party for the person, like Build a Bear, Mc Donalds, Burger King. If is a themed Birthday made by the person, Dora the Explorer, Strawberry Shortcake and Barbie are the best ideas.
boomers
www.chiff.com is the best site for it. Birthday Party Ideas for 5-year-olds - Parents join in at this archived message board with ideas for age-appropriate parties, activity ideas and advice on food, games, and favors. ... chiff.com - You're Guide to the Best Sites
Entertianment is came up with unique and best ideas for birthday parties for kids.
sky zone
The best place to start could be Martha Stewart unexpected wedding ideas. Magazines such as Bridal have pictures and ideas as well an online site in case you can't get the magazines.