This wibbly wobbly pattern is not really wobbling at all. It is only moving downwards the rest is caused by your eyes. If you just lock your eyes on to one green ball and follow it down the page you will see there is no sideways movement. 
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Look at this beautiful lake. You might be surprised to find out that there is no water in this picture at all. What looks like a lake is in fact a white garden wall. Image source unknown

Hello Spy Fans. Today I have designed an optical for you showing the Queen of the United Kingdom hiding in the islands. Can you spot her? Of course you can, It is a bit obvious I know, still it was fun making it. - Spyman

This is quite a famous picture of a bus we found on the internet where the advertizer has painted a shark on the side of a bus and used the sliding doors to make a great illusion. We loved it so much that we thought animating it might look good. Original image source unknown 

I have started a new art form which I call oprtrix. You can see more of my work here Oprtrix Gallery. - Spyman

Watch out for those bloody cricket balls!!! Not really an optical illusion, just a bit of fun today - Spyman
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If you are an optical spy regular you’ll be aware of our love of illusions. We have produced quite a few of our own over the years and thought you might like to see the one voted as 'the greatest optical illusion in the world', ‘The Steelwork Illusion’. As ever our inspiration comes from M.C. Escher‘s work around the ‘Penrose Triangle’. If you can't see what's going on take a closer look at the girders the third worker from the left is laying on, then follow around the joints  of the metalwork or check out the detail below. Original image source unknown

Click start to see what's hiding in the blobs. Flash animation may not work on all devices.

Today's optical illusion is of the famous Rubics Cube. Can you spot the illusion? Well it is difficult to notice, but the center squares on each side are actually all the same color. Wow! If you dont beleive it, click on the optical and you will see.

Hi guys, today I am just playing around with a bit of code to try and get the picture to change when you put your mouse over it. The original code was given to me by Masodo over at blogdogit. But I have been having a bit of trouble with it. So please ignore me while I try and get it working again. Spyman

Yes, you guessed it. These two black squares are exactly the same size

A great painting by Chris Buzelli of twin boys all mixed up.

This great picture shows some F18 aircraft almost touching, how many are there? Image source - flycorvair

If you look at these two round patterns one looks like it is popping in and the other is popping out. If you follow one of them around it will change from an innie to an outie, but this is done solely by your brain, the shapes do not change. Crazy isn't it?

We found these great, well timed photos, on the internet giving the illusion of the sun going through a hoop. We loved it so much we decided to animate it. What do you think? Original image source unknown.