Reminds me of the racing games for the ZX Spectrum. They exploited the rubber keyboard and recommended the use of a large roll of Sellotape pressed on to the computer as a steering wheel.
It should be noted that they recommended that after one early racing game included a plastic wheel that rolled on the keys in the same manner, and people noticed that it was about the same size as a reel of sellotape
Sadly the major racing game that preceeded it, Psion's Chequered Flag, didn't thus support the key scheme that the reel of tape method produced; a shame, since it was by far a better game otherwise.
edit: also, of course, in early 1984 the spectrum+ became the default 'sinclair spectrum' and didn't really work with the plastic wheel / reel of sellotape method, so it was a fairly short lived method all told, even though it lived on as an option in a few games for a couple of years longer.
In 1986 there was also a surfing game that utilised a similar method of including a little plastic surfboard that rested on rubber key'ed spectrums, and depending on which way you tilted it, it would press certain key/key-combos down and claimed to thus give you a more 'realistic' control method.
I believe this one had little nubs under the board, and thus worked 'somewhat' on the Spectrum+ too. Notably the review calls out that at least one of the reviewers couldn't get it to work quite right on the + keyboard.
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