Connect separate queries into one

I'm trying to do a query which presents my data in an atypical way. The easiest way to explain is by example:

header:

    SELECT
    '010' header,
    '54' as number1,
    'MAC' sender
    from dual

table1

select
phonenumber,
clientid
from table1


output: 
 phonenumer   clientid
   54234         3
   4234          2
   41211         5

table2

select
    productname,
    productid
    from table2

output: 
 productname productid
   Apple       9
   TV          2

table1, table2, and header are not connected. As output I will expect:

010   54  MAC    <- from header
54234 3          <- from query1
      Apple 9    <- from query2
010   54  MAC
4234  2
      TV  2

and so on.

How can handle this? I was trying to use CROSS JOIN, and UNION. Is this possible to do using SQL? Should I create a procedure/function?

You can combine the rows using union all. Then you can interleave the values using row_number() or rownum and order them using order by:

select header, number1, sender
from ((select header, number1, sender, 1 as priority, NULL as rn
       from header
      ) union all
      (select phonenumber, clientid, NULL, 2, rownum as rn
       from table1
      ) union all
      (select NULL, productname, productid, 2, rownum as rn
       from table2
      )
     ) t
order by priority, rn, header nulls last;