good suggestions so far.
I know there are some story books out there that actually work math facts into it. one i'm thinking of is about a family of rabbits lol.
So googling stories about mulitplication might give you some ideas you can check out from the library.
montessori kindergarten classrooms spend alot of time counting strings of sets of beads, so like five has five sets of five pink beads strung together, and kids learn really concretely how to skip count by 5s which then helps with addition and mulitplication.
and yes, i do think i would go back to counters.
oh but assess first if there are any they already just know, don't spend time learning to multiply by 2 if they already know them,
1, 10s, 5,s 2s are pretty easy