rear trailing arm bushing polly or rubber/better pricing

[mazda_looza]

so 2 days after installing new clutch and driver front wheel bearing in my 05 mazda 3 i hear clunking coming from the rear.... lifted the car up and see the trailing arm bushing has popped out and making to much noise to handle....... so what u think i should do install polly bushings or rubber? whats the price of polly bushing usually and where can i get them? i do plan to lower the car