In general i liked the idea with the scratched records, he showed this in our club (ego) too. But at this time i already found a more interesting way of having a even more interesting effect.
Instead of treating records with cuts and tesa... i just used the last endless loop of jamaica-pressed 7" vinyls.
Its increadible how funny sounds you can find there without doing anything to the vinyl.
Since they have the worst press-quality, you have everything from massive bass, crackles, clicks to sweeps and oder nice ambience-sounds.
And if you use them without the puck in the middle, you can play them excentric, which has the effect (apart from that it looks odd), that the loop changes totally.
try it with serveral 7" records and mix them together if you have the chance, you'll be surprised.