I'm not sure what you mean by Halloween pop, but I don't think there are any kinds of soda pop that are made for Halloween. If you're asking about pop songs, the top ten are on this site: http://top40.about.com/od/top10lists/tp/halloweensongs.htm.
Jones Soda Company sells Halloween themed soda pop in flavors such as "Lemon Drop Dead", "Spooookiwi", "Candy Corn", and "Buried Pomegranate". These can be purchased at cookiepots.com.
A very Good Halloween Album for parties and other occasions is called Haunted Halloween Pop Music by Halloween Hit Factory. It is 15.99$ on Amazon. I own this album and its fun with Kids and Adults of All Ages. Here Is the Link http://www.amazon.com/Haunted-Halloween-Pop-Music-Factory/dp/B004IWQ960
There are Halloween stores that pop up around the country during the Halloween season. They are large stores found in strip malls and shopping centers and they carry a vast assortment of costumes and accessories. You can also find Batman costumes at costumeexpress.com.
A good idea for couples halloween costumes based on pop-culture is to dress up like Jay-Z and Beyonce. For politics, dress up as The First Lady and President Obama.
They have some at yandy.com, which is a great website for all of your costume needs. If you are looking for some for a younger generation, you can try amazon.com or ebay.com as they will be on for discount prices but still good material.
It is unlikely that things will pop out at you at the Halloween Haunt on Club Penguin. This hasn't happened in the past, however, it could be a first this year!
You don't you buy them
There are Halloween stores that pop-up across the country during the season. They are usually located in shopping centers and carry a wide assortment of costumes and accessories for Halloween. You can also find costumes on line at www.costumeexpress.com.
During the halloween season oftentimes costume stores seem to pop-up in empty store fronts or in your local mall. You can visit costume websites online and see if they have a store in your area by typing in your zipcode.
The top 10 best Halloween pop songs are The Monster Mash, Nightmare on my street, Thriller, The Time Warp, I'm a Goner, Psycho Man, and Boris the Spider.
When it comes to looking for costumes for their baby, one could begin by going out to the local Halloween store. Many towns have these stores pop up a month or so before Halloween and they have costumes appropriate for all ages. If that doesn't suit your fancy, you could ask around to friends and relatives that have children and see if they have old costumes you might be able to borrow, which would save you some money.
Hallmark is always a good place to start to look for birthday e-cards. If you want to find something cheaper, you can look up free cards and something should pop up.