Sorry you won't get these by April 1, because I had great fun with some years ago on April Fool's day.  My son would not touch a light switch for a week!

Standard screw base fits Graflex and other Press camera flash holders.

6 pounds shipping weight.

$25.00 for US Mail; $50.00 for Canada or US outside the lower 48 states; $100.00 for International Mail.  If actual shipping is less, then the difference will be refunded to your PayPal account