Toys for the senior dog

i am looking for some toys for my 11 year old x-staffie. i have tried playing tug of war, a buster cube, balls, frisbees and he just doesnt seem interested. when he was younger he was always interested in the above but now he's older he dosent seem interested in toys/play at all.

can any one recommend any toys to try please?

Maybe his teeth hurt................?

My dog is 11 and she has not altered in her outlook (she don't think she is a "senior" either)

His teeth are fine. he chews raw hide bones with no problem. he just seems to be only interested in food (he is on steroids though). but he wouldnt play with the buster cube.

Have you tried a Tug a Jug?

i've never heard of the tug a jug so i've just been on utube and it looks great. may be the sort of toy he would play with. will give it a try.

thanks for the advice.