I am very creative when it comes to making things for my little sister. Things I have made in the past that are easy and not that expensive are as follows:
Shirts with letters on it (I cut out letters outta fabric (I use the squares that quilters use and I am able to cut out 3 letters with one square), I then take the iron backing and put that on the letters and then iron the letters on the shirt, then I take pufft paint (or if I wanna take a lot of time on it I sew the letters on) and put the paint around the letters.
I make pillow cases the same way I make shirts.
I currently just made a flower pot for my cousin who is gonna be initiated into my chapter this coming friday. I had these gawdy looking bed risers to make my bed taller but they ended up being too tall so I thought "hell, I can turn these into flower pots!"

Well, my dad drilled the holes in at the bottom, I painted them white and then painted on our letters, our flowers, her name and her pledge class and iniation date on it.
I have also made door hangers that that say things like "Shh, Tau Time!" and "Quiet Tau sleepin'".
Also have made picture frames, bags and many more.
Hmmm....I should open a buisness up lol