Tanks-A-Lot of Northants, UK, rents military tanks for memorable occasions like proms, weddings, and "corporate fun" days. From the "Corporate Fun" page at their site,
The resultant benefit to people who participate in our events include enhanced team loyalty, confidence and personal development - produced thorough activities that are fun, exciting and stimulating - and that won't be forgotten. Even the shyest, most cautious person leaves our events with a sense of real achievement and enjoyment. Often previously unnoticed personal qualities such as leadership and team participation soon become apparent discovered during our activities. Staff and management at all levels, from all sizes and types of companies have received a tangible benefit from their day with TANKS-A- LOT.
Link (Thanks, Vann Hall!)