Using little empty bottles of baby food around the room is really cute. Cool designs for the invitations is also a really good idea. And a cool centerpiece is good too
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
Some good centerpiece ideas for a baby shower would be a diaper cake, some pretty flowers in a vase in either blue or pink for the gender of the baby or you could display a 3 tiered platter of baby themed treats and cupcakes.
Some unique do it yourself baby shower ideas include hanging baby clothes near where the shower is being held. You can create candy favors. For more ideas: http://www.ehow.com/info_8172828_do-baby-shower-decoration-ideas.html
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.
One can find neutral baby shower ideas from many places. Some of the best sites where one can easily find shower cake ideas are baby shower, shower for life and many more.
Baby boy shower ideas can be found in good books or magazines in bookstores. One can also ask around others who have experience. Ideas can also be found in forums online.
Many new moms register at babies r us or Target for presents for their babies. Consulting a registry is always a good idea because you will be buying something you know the expectant mother wants.
On the webpage beau-coup.com you will find a top 20 describing the best baby shower game of the market. Another good ideas are on pages as happyhomefairy.com or hubpages.com.
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.
Baby shower decoration ideas can be found in plenty online. Another way to gather ideas is to talk to some friends or family whom have already had children and a baby shower for input and advice.
Some unique ideas for a baby shower can be clothes, or home-made cards. For cool ideas, maybe something home-made would be really nice for the baby. Something for the room when the baby grows up.
At this website, you can find lots of baby shower ideas, and how to throw them. If you need some products to go along with the baby shower, they are sold online at that website as well. http://pregnant.thebump.com/pregnancy/baby-showers.aspx