Yamaha DTXpress/DTXplorer/DTXtreme

Does anybody remember those octagonal pads that a lot of e-drummers 
were using in the 1980s? Anyone know what brand of kit they were 
playing? I'd love to have some of those '80s sounds on my DTXpress, 
because at some stage I'd like to be in a Genesis ("And Then There 
Were Three" era) cover band.