Refer to a variable by pasting strings then make changes and see them refrelcted in the original variable

Question

my_mtcars_1 <- mtcars
my_mtcars_2 <- mtcars
my_mtcars_3 <- mtcars

for(i in 1:3) {get(paste0(\'my_mtcars_\', i))$blah <- 1}
Error in get(paste0("my_