add five items on list to each value in column of dataframe

Question

Not really sure how to phrase the title, but what I have a list of names in a dataframe and I would like to add five items from a list to each name such that each name and one item is a row. So,

Name 1, Item1

Name 1, Item2

Name 1, Item3

Name 1, Item4 

Example data:

testdata<-as_tibble(c("Steve","Paul","Mary"))
product<-c("Item1","Item2","Item3","Item4","Item5")

Answer 1

We may need crossing

library(tidyr)
crossing(testdata, product)

-output

# A tibble: 15 x 2
   value product
   <chr> <chr>  
 1 Mary  Item1  
 2 Mary  Item2  
 3 Mary  Item3  
 4 Mary  Item4  
 5 Mary  Item5  
 6 Paul  Item1  
 7 Paul  Item2  
 8 Paul  Item3  
 9 Paul  Item4  
10 Paul  Item5  
11 Steve Item1  
12 Steve Item2  
13 Steve Item3  
14 Steve Item4  
15 Steve Item5