Unlike the white shirts of the past, black shirts aren't normally see-through. They aren't supposed to shrink. However, you might want to ask your mom what temperature to wash it in. I don't like spiders. Spiders are gross and icky and they tend to frighten me.
Spiders are cool.
Remember you won't have to look at it. Besides, it's just one itsy bitsy spider. Just don't freak when someone tells you that you have a spider on your back. We try to keep the cost of the shirts low and just try to cover our cost. All extra shirts from previous years have been sold.