While a trip to London is probably not be in the works, a visit to the Freud Museum's website might be a close substitute. The site can be found at http://www.freud.org.uk/
Pay particular attention to the Photo Library, Education and Shop sections. Just image discussing Freudian Slips as you walk around your classroom in Freud Slippers from the giftshop.
Perhaps some of the visitors to the THSP blog from the London area could provide some insights into the museum in the comments section.