These aren't in any particular order except the order I found them in.
10. Um, yeah. I'm betting they could take out the word "wheelchair" and be even more accurate.

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9. This one falls squarely into "wait, WHAT?" territory.

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8. Evidently, it's now a "Wheeeeeee!"chair.

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7. And this is a bad thing?

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6. Yes, this one is real. It's made the rounds on the Internet before, but I'd be remiss if I didn't add it here.

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5. I have no idea what's supposed to be going on in this sign, but I don't think the guy in the wheelchair likes being kicked around in a little ball.

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4. I know this sign wasn't designed this way, but it's still cute. There's a reason I love white-out pens.

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3. This one should be a lot more common than it is. (I like that the guy's using a hiking stick.)

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2. I get the feeling somebody's fed up with people who don't need it taking his or her parking space. The English translation: "If you take my parking space, please also take my disability." (The French word "handicap" doesn't have quite the same baggage as it does in English.)

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1. This one made me literally laugh out loud. And now I kind of want to find out who designed the sign.

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