SandlotScience now offers selected PayPal Gift Certificates.
PayPal Gift Certificates are purchased like any other item. You can choose to have Paypal deliver your Certificate to a recipient, or you can choose to print and deliver them yourself. Certificates can be redeemed anytime, and are transferable. Certificates can be cancelled or refunded for up to 60-days by the purchaser. You will find more information about privacy issues, and complete terms and conditions during the PayPal purchase dialog.

  $34.95
Good for any single Large size (13 x 19) archival print. Includes U.S. shipping.

  $17.99
Good for one 2006 You Won't Believe Your Eyes! Desktop Calendar. Includes U.S. shipping.

  $37.95
Good for one Opti-Gone Mirage Maker Desktop Illusion. Includes U.S. shipping.

Example Certificate (not shown actual size)