You know for a school pageant. From Scout in To Kill a Mockingbird dressed as a giant ham to the new camera/phone commercial, school kids dress up as food and sing and dance and stuff. The costumes seem to limit mobility.
But I have never done this, nor have I ever seen it.
Does this really exist?
I was a giant can of pop one year for Halloween. Yes, it severely limited mobility. I seem to have a penchant for mobility-limiting Halloween costumes.
EDIT: It wasn’t for a school play, but I figured it’s close enough.
I mean for school. School pageant or play.
You know, it’s thread titles like this that remind me why I love the Dope (and no, I’ve never dressed up as a giant food). 
I was an incredibly weepy potato-- my beloved family was going to be turned into mashed potatoes and eaten for Thanskgiving dinner.
My costume, I believe, consisted of a sheet of posterboard, with a potato drawn on it, and colored by Me.
Well, I did, but I didn’t have to. We had a thing called Junior Olympics at one of my schools where each class got a country and had to dress up as someone or something from that country. One year I was a banana. Does that count?
If a giant bag of jellybeans counts as food, then “yes”. But for Halloween, not a school play.
No, but I got my first ever pair of jeans for a 2nd grade production of “FIFTY Singular Sensations” (Sung to the similarly and more logically named “One Singular Sensation*”). It was for some school assembly designed to be all patriotic for some occasion I can’t exactly recall; Fifty referred to the states. We wore jeans, white tee shirts, white gloves and black top hats for the costumes. Every class had a number, but I don’t recall any of them being food.
*Also the first time I had a teacher sigh in exasperation and remove me from the group because I would not STFU about the illogic of 50…Singular, or the line, “…each and every one the best!”
Back when I was in highschool, I had a part-time job that involved me wearing a bagel suit and waving at traffic. Does that count?
It was hot, but thankfully, my face was covered so nobody knew it was me.
I was a Thanksgiving turkey in 2nd grade. Does that count?
I was a coffee bean in a performance about El Salvador.
Yes, in a (Jewish) Sunday School musical, I was a potato. The play was about latke ingredients, and I sang a song about my life underground, to the tune of Gilbert & Sullivan’s “Tit-Willow.” My costume was burlap, with eyes painting on it.
I’m surprised this didn’t launch a successful acting career.