In a year when the April Fools' Day hijinks were essentially put on hold, BookBar in Denver, Colo., came through with a flourish by introducing its "pneumatic order fulfillment system"--patent pending, presumably. Here are the details:
"Businesses throughout the world have been required to change their models almost overnight due to Covid-19 and BookBar is no exception. We closed the store to the public initially, filling orders online and to-go only. Soon after, however, we sent our staff home on paid leave and switched to online and delivery only. Since then, we have been developing a way to get back into the store to serve our customers in a safe, socially distanced manner so we are breaking ground on a pneumatic order fulfillment system. 
Just pull into our alley and up to the self-service station for book recommendations which can be sent from the store direct to your car in a safe manner.
"We have manufacturers working on developing larger square, book-shaped 'tubes' to better accommodate our products. Alternatively, we are working with our publishing partners to create cylindrical books in order to better fit the tubes. (whichever comes first).
"But we can't forget the bar in BookBar. We are also developing wine glass shaped tubes (in either 6 or 9 ounces) for delivery direct to you. We encourage you to pull over, sip, read and return your pneumatic wine glass when you are finished. Pizzetta and crostini tube development is in the not too distant future as well....
"In lieu of author events, we will invite guest authors and poets to do readings through the speaker system as you place your order. Be sure to wave to your friendly BookBarista as you pull away. We miss all of your faces!"