The King is now accepting visitors on the V4 TamaTown site. If you previously donated points to him (to a high enough level) he will give you souvenirs now.
Note: only one Royal Souvenir is awarded per visit to TamaTown. So if you have already donated the maximum (200000) points:
(1) login to the V4 TamaTown site
(2) go see the King - he'll thank you and offer you a Scepter
(3) logout
(4) enter the souvenir password into your V4 and see the King deliver the Scepter to you
(5) login again
(6) go see the King - he'll thank you and offer you a Sword
(7) logout
(8) enter the souvenir password into your V4 and see the King deliver the Sword to you
(9) login again
(10) go see the King - he'll thank you and offer you a Shield
(11) enter the souvenir password into your V4 and see the King deliver the Shield to you.
(12) check your item list - you'll find you now also have a Royal Costume