Hi hun,i gave my sister a baby shower in febuary this year.I made sure there was food and drinks aplenty and i secretly wrote down all the things my sister needed or hadnt brought yet,as when people started rsvp'ing me they kept asking what she needed so i had a list of small things that wernt to expensive but generaly people just buy what they want.We made up our own games such as ...
The string game,i had a roll of string and each guest had to cut how ever much string they thought would fit around my sisters belly the guests whos string is the closest wins.
Then we had a baby changing race, borrow x2 dolls and x2 singlets x2nappys and x2grow suits who ever dresses the baby first wins.We just gave the winners boxes of choccys.
We then had a baby bottle filled with jelly beans and who ever guessed the amount won it.
My sister then unwrapped all of her prezzys infront of her guests while they had tea,coffee and cakes.
I hope this helps i did it all my self and it came out to well under $150(australian)and we had 50 guests.

(my mum and i made all the food)