Stocks climbing to 10 times their original price are rare breeds -- but they're not impossible to find. Especially when you have Fools for friends.

The market's best stocks include companies that have risen dozens of times in value over the past decade. These aren't penny stocks; they're viable companies with sound business prospects, achieving phenomenal returns every year. Finding just one or two of these monstrously successful firms can help you establish a winning portfolio.

Stalking the monster
To find tomorrow's winners, we'll enlist the more than 125,000 monster trackers at Motley Fool CAPS. We've compiled a list of the most successful CAPS members, dubbed All-Stars, whose picks have doubled, tripled, or even quadrupled in price. Then we've plucked out some of their recent picks for stocks they find equally promising.

Player

CAPS Member Rating

Monster Stock

CAPS Score

Recent Stock Pick

CAPS Rating (out of 5 max)

BravoBevo

99.99

China Finance Online

315.12

Royal Bank of Scotland (NYSE:RBS)

**

tenmiles

99.99

Emergent BioSolutions

351.61

ARIAD Pharmaceuticals (NASDAQ:ARIA)

**

BullMarketN09

99.87

John Hancock Bank & Thrift Oppty Fund

304.13

PowerShares DB Crude (NYSE:DXO)

*****

foolsMeThrice

99.86

Mechel

371.60

Yamana Gold (NYSE:AUY)

****

metoo105

99.71

Dendreon

335.43

Delta Air Lines (NYSE:DAL)

*

Of course, this is not a list of stocks to buy -- or, for those monster stocks that our CAPS All-Stars have already found, sell. Just consider them starting points for your own further research into extreme buying opportunities.

In search of Bigfoot
Since hitting their low points three months ago, gold miners like Yamana Gold and Kinross Gold (NYSE:KGC) have more than doubled in price. Kinross is using the opportunity to raise capital, looking to sell more than $400 million worth of new stock to support its cash reserves in a slowing economy. Not that it needs the help. Kinross already has $500 million on its balance sheet, but it's seizing an ideal opportunity to raise money now. Some analysts feel Yamana and others may follow suit. Yamana sold shares at the end of last year that raised $110 million, while Agnico-Eagle Mines (NYSE:AEM) sold $286 million worth.

Top-rated CAPS All-Star member PaperIsPoverty praises Yamana's shining prospects:

With one of the lowest cost per ounce ratios, buying Yamana Gold is a surefire winner. Gold prices are being suppressed through paper manipulation, and like holding a balloon under water, eventually it will slip and shoot upwards. Gold could double over the next two years, and this stock would probably more than double. With the fed printing money at astronomical rates, inflation is going to hit us hard in 2009. This stock is as good as gold.

Sounding the depths of Loch Ness
Prices at the gasoline pumps have jumped 15% so far in 2009. Average national prices now hover around $1.85 a gallon -- thankfully, still well below the $4-a-gallon prices of last summer.

If you're an investor who sees the potential of oil surging again, and prices at the pump going higher, you might want to play that possibility through a leveraged ETF like PowerShares DB Crude Oil Double Long, which magnifies the sector bet an investor makes. The PowerShares fund aims to track 200% of the daily performance of its light sweet crude oil index. A word of caution, though: Some leveraged or inverse funds carry higher-than-normal expense ratios, and many analysts consider them unsuitable for most investors.

Even if this pick isn't a long-term holdiing, All-Star CAPS member ktrotter79 thinks we've pretty much reached the nadir of oil's price, arguing that the ETF makes for an interesting trade position:

I am not sure we are at the bottom, but I am sure that we are very close. ... Every time there is a 10% drop in the index you should buy, and every time there is a 10% increase in the index you should sell. I do not recommend purchasing and holding ultra etfs long-term. The fees are simply too high. Play the trading range and don't get too greedy.

If you decide to play alongside ktrotter79, tread carefully, Fool!

A chance for scary growth
It takes more than a few All-Star picks and a quick paragraph to make buy or sell decisions. Start your own research on these stocks on Motley Fool CAPS. You can read a company's financial reports, scrutinize key data and charts, and examine the comments your fellow investors have made, all from a stock's CAPS page. And while you're there, weigh in with your own thoughts on whether these are tomorrow's monster stocks.

Fool contributor Rich Duprey does not have a financial position in any of the stocks mentioned in this article. See all of Rich's holdings. China Finance Online is a Motley Fool Rule Breakers pick. The Motley Fool has a disclosure policy.