Clothesline - Hang a clothesline across a wall or doorway (be careful that its not so low that guests run into it) and hang shirts mentioned above or various baby items (rattles, diapers, pacifiers) from it.

Flowers - always make great centerpieces, especially when colors match your theme.

Watermelon baby carriage - Great centerpiece for a food table, filled with melon balls and small fruits.

Baby toys/items - Random toys and stuffed animals can be placed out and used to anchor balloons. Use items such as bassinets, playpens and rocking horses to display gifts.

Photos - pictures of the parents-to-be or siblings of baby add a personal touch to the shower.

Candles - candles add a classy touch to any party, especially night time showers.

Wishing well - decorate a container (coffee can, bucket, etc) and have guests drop in money or small baby items for the couple-to-be.

Pacifiers - Use as napkin rings or balloon weights.

Yard signs - rent, purchase or make your own signs to decorate the front yard, and to guide the way to the shower location.

Confetti/Glitter - Regular or baby item shaped confetti and/or glitter can be spread across tables. Place a layer of glass or plastic over to avoid a huge mess.

Blocks - use baby alphabet blocks to spell out baby’s name or phrases like "Baby Shower".

Punch bowl - decorate your punch bowl by adding floating fruits and ice rings. Sliced starfruit looks very nice. New, clean rubber duckies also look very cute floating in the bowl.

Baby tree - decorate a small tabletop Christmas tree with pacifiers and miniature baby figurines instead of ornaments.

Baby Food Jar Candles - Buy some baby food in glass baby food jars. Try to find jars with attractive labels on them (I think there are some pretty cute ones). Empty out the food and rinse the inside of the jars, but try not to damage the labels. Place a votive candle in each jar and use them on the tables.