Some examples of good baby shower favors are personalized napkins, customized candies, and candles.
Any type of baby shower favors are good for a twin baby shower as well. Chocolates, little photo frames etc. You can find some ideas here: http://www.prettybabygifts.com/baby-shower-favors.html
BabyCenter is a good site that will help you plan a great baby shower. There are ideas for food, games, themes, favors that will help you plan personalized baby shower.
You can purchase cheap baby shower favors from www.baby-shower.com/sections/partyfavors.html. Another good site is www.bamababiesandbirthdays.com/ http://www.bellissimofavors.com/ is one site which sells favors for all sorts of occasions. You can also try www.bestbabyshower.com
Think about items that have a spring feel to them. Items like flowers are good for may.
M&Ms offer candies with names and other things printed on the candy which could be served at a baby shower. Also baby food jars filled with small candies or mints, baby shower bingo, and pacifier pins are good ideas.
Personalized candy jars and baby bottles are popular favors. Even bags of personalized M&M's with babies name or due date or good idea's.
May is spring time,so nice spring decorations are a good idea. Try and go with a flower theme.
A centerpiece with a picture of a Baby boy on it or a Baby girl is a really good idea for a baby shower centerpieces. Also a picture of a diaper and a binkie might be good.
I bought my baby shower cakes on Red Ribbon, it's a Filipino bakery store. You should try it. Really nice design and really good cake. All my friends asked me where did I bought my baby shower cakes. They're really love the cake. I'm so glad I bought my baby shower cakes there.
There are a lot of good cheap online stores to shop from. It all depends on what you are looking for. A good place to start looking is at Oriental Trading or Party Pail.
No, not really. Of course diapers will be needed, but most of the time people bring other items to a baby shower like clothes and toys.
If you want to go to an actual store, try Toys R us and Babies R Us. There are also some good sites that have gifts which you can order online. Here is one: http://www.babygiftstation.com/Baby-Shower-Favors-s/77.htm