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/
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.
gigsalad.com has some great ideas for themes for 50th birthday parties. I think Oriental Trading is the place to look for decorations.
One can find 50th birthday party ideas by visiting party stores or perusing birthday planning books in bookstores. One can also ask friends and families for their experience and ideas.
I love the gift ideas for the 50th birthday on www.squidoo.com/50th-birthday-gift-ideas as it has some unique gifts. The special collection includes gifts from 50 years ago like newspapers, candy and even coin collections. Everything on this page is "50" years old.
You can make him an over the hills cake, a beer cake, a cake that looks like boobs, there are lots of options. You could also check Pinterest of 50th birthday cake ideas.
pink and white balloons
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.
It is quite easy to find decorations for a 50th Birthday party, and you can find them at local card shops as well as any party supply store. I have found a fantastic site for ideas for your Mom's birthday on this site: 50thbirthdayparty.org/
A good source to research 50th birthday ideas is Pinterest. You can find a wide variety of creative and inspirational ideas for parties, gifts, and activities to celebrate this milestone birthday. You can create a mood board, save pins, and get inspired by others' creative celebrations.
Golden birthday
A 50th birthday is commonly referred to as a "golden birthday" or a "half-century birthday" as it marks reaching the milestone age of fifty years.
There are many things you can write on a 50th birthday card including Happy Birthday. You can also wish them a good day.