Step 1: Find the image/render you want to use. I recommend a face on image of a beyblade. For this tutorial I will be using a render of Beat Lynx. Open it in GIMP. Your screen should look like this:
[Image: epJKQ.jpg]

Step 2: Once open, the image should have a single layer visible on the left side of the screen:
[Image: AStka.jpg]
That is your first layer, I have called it Lynx. Now right click that layer and click on 'Duplicate Layer':
[Image: sLneN.jpg]
Now you should have something like this:
[Image: UegUN.jpg]

Step 3: Next, on the duplicated layer go to the top menu bar and click the option that says 'Filters'. Then move over the option that says 'Blur', and then over the option that says 'Motion Blur'. It should be like this:
[Image: um5gF.jpg]
Click that 'Motion Blur Option'. Move to step 4.

Step 4: Now you should have something like this:[Image: saew2.jpg]
The default setting is on 'Linear', but we need it on 'Radial'. So go ahead and click the 'Radial' option. Also make sure that the 'Preview' box is ticked so we can see what we are doing here. Now your screen should look like this:
[Image: 8k7nU.jpg]
You can edit the angle of the blur if you want, but I'll just keep the default settings. Once you are happy go ahead and click 'OK'

Step 5: Once GIMP has applied your motion blur, your image should look like this:
[Image: XPikJ.jpg]
Next, go ahead and duplicate that layer 3 times, so in total you have 5 layers and your screen looks like this:
[Image: 5bmhH.jpg]
I have renamed each layer because I'm pedantic like that, but you don't have to. It will help in the next few steps if you name them something like mine though. Please proceed to the next step when done.

Step 6: This part gets kinda to tricky to begin with, but you'll get the hang of it. Keep the original layer you blurred as it is (ie. in my case layer 'Lynx Rotation 1'). Click the layer above it (Lynx Rotation 2). Now go an select the 'Rotation Tool', like this:[Image: DcNkE.jpg]
Once selected, click your image and a option box should appear. Change the angle to the rotation to 90.00 degrees, let the other values sit.
Click 'OK'

Step 7: Repeat step 6 for each layer, but adding 90.00 degrees each time. ie for 'Lynx Rotation 3' I rotate the layer 180.00 degrees and for 'Lynx Rotation 4' I rotate it 270.00 degrees. You should have something along the lines of this now:
[Image: MwVJK.jpg]

Step 8: You are almost done! In fact, all you need to do now is preview your animation, do a few tweaks and save it! To preview it, go to the top menu bar and click on 'Filters'. Then move over the option that says 'Animation' then from that click on 'Playback', like this:
[Image: 6pllR.jpg]

Step 9: Now you should have a box like this on your screen:
Click the play symbol, go ahead, click it. See your masterpiece at work!
...
Ok, so it's not done yet, but it spins don't it! The problem is you can see the layers behind it (if you have a transparent BG like I do). If you don't, skip step 10 and move to step 11.

Step 10: To fix the transparency problem, go to the top menu and click 'Layer', then 'New Layer'. Then select the 'White' option and click 'OK'. Duplicate that layer 4 times. The move each white layer underneath a separate 'Lynx Rotation _' layer, so it looks like this:[Image: z3tA4.jpg]
Now right merge click on a 'Lynx Rotation _' layer and click 'Merge Down'. Repeat for every layer until you have this:[Image: k8fmA.jpg]
Now, you can repeat step 8 and preview your animation. What will happen?
...
Now thats better!
If you want, you can change the name of the 'Lynx Base' Layer, and add '(1000ms) to it, this will make that layer last for 1000ms/1s. You can also delete the 'Lynx Rotation 1' layer. Now that should be it! Move on to step 11.

11. Now you just save it as a .gif, and you are done! You have now made a spinning animation! This should be self explanatory, just save it as an animation option and you are done! This is what mine turned out like:
[Image: NXB8w.gif]