They are plastic, which is a 'thumbs-up' in my book! Run and go get them at Michael's!! The stamp I used was from Hero Arts' Simply the Best, it is actually a watermelon, so stamp it in yellow on yellow cardstock and, voila, you instantly have a 'lemon' slice! Or stamp in black and color in yellow.
Assembly time takes a while but the difficulty level is pretty much ZERO!
Take your cup and fill inside with goodies/candy.
Insert straw and umbrella (handmake or store bought).
Insert your handmade card into a clear plastic bag.
Using matching twine color, clip a hole at the top of the bag, insert twine and tie the clear bag around the straw.
Attach lemon slice on cup - TIP: use glossy accents to hold down the lemon so it won't fall off.
Stamps: CL442 - Simply the Best by Hero Arts.
Patterned Paper: Summer Days and Dots & Stripes by Echo Park.
Ink: Jenni Bowlin.
(4) plastic drinking cups.
Assorted twine: blue, pink, orange, and green.
Umbrella and straws.