Royal De Math by Lars La Ville

Here is a series of mind-boggling spelling effects with cards and items. 

1: Royal De Math 

The cards are shuffled, and you show 5 different Items. A card case, telephone, Rubik's Cube, a Sharpie, and some rubber bands. First the spectator chooses all 5 items in a random order and, for each letter the items are spelled with, you deal the cards to the table. You make 5 piles. Now you collect the cards and spell each item again. On the last letter of each item, you place a card to the side. After all this random spelling, you end up with a Royal Flush. 

2: Royal De Math 2 (Variation) 

3: 4 Of A Kindo 

Same effect as Royal De Math, but here you only use 4 items, and you end with 4 of a kind. 

4: 4 Of A Kindo 2 (Variation) 

5: CCAARN 

The cards are shuffled, and you show 4 different Items. A wallet, some coins, a Sharpie, and a telephone. A spectator choose a card and it gets lost in the deck. First the spectator chooses all 4 items in a random order and, for each letter the items are spelled with, you deal the cards to the table. You make 4 piles. Now you collect the cards and spell each item again. On the last letter of each item, you place a card to the side. After all this random spelling, you hope that one of the cards on the table is the chosen card. None of the cards are the selection. The 4 cards are added together, and the spectator counts to that number in the deck. It is the chosen card. 

6: Four 

4 spectators each take a card. The cards are then lost in the deck. You show 4 different items -- a wallet, some coins, a Sharpie, and a telephone. First the spectator chooses all the 4 items in a random order. For each letter the items spelled with, you deal the cards to the table. You make 4 piles. Now you collect the cards and spell each item again. On the last letter of each item, you place a card to the side. The 4 cards are turned over and those cards are all the ones previously selected by the spectators. 

7: Four Again (Variation.) 

Easy to do. Use a borrowed deck. 

Duration: 31 minutes. 
Download the video and learn these effects.