Welcome to the AutumnHippo store!
New Stuff for Old Computers!
I do various kinds of gadgets and other thingies, usually involving some electronics and not rarely for use with retro computers.
If you like retro computing and gaming, or you are a maker, builder, tinkerer, programmer like me, feel free to have a look around.
AmigaCF - Clicking CF Adapter
Important: Shipments to the USA
20 August 2025
(updated 9 October 2025)
Effective August 29, 2025, the US authorities have suspended the de minimis exemption for all international shipments to the U.S., which means that:
Going forward, the US authorities will apply duties/tariffs/taxes
and/or fees to all shipments going into the USA, no matter the value.
The Danish postal service has announced that it will be returning all shipments headed for the USA until it has implemented this change from the US authorities. As per beginning of October, they have still not resumed shipments to the U.S. Therefore, I will not be able to send postal packages to the USA for the time being.
Shipments from AutumnHippo to the U.S. via FedEx and UPS are still possible. Please note, though, that:
shipping costs charged by AutumnHippo cover freight only.
As is the case with any shipment to a non-EU country, any applicable import duties, tariffs, customs fees, etc. will be charged directly to buyer/importer (which in this case is you) locally at delivery by the carrier, on behalf of local customs authorities, or directly by local customs authorities.
If any charge is not paid, the shipment will be returned at buyer's/importer's expense, i.e. you will be refunded the price of the goods, minus the cost of the return shipment back to Denmark.
Made-to-order items to the U.S. (mugs, t-shirts, mouse pads, etc.) are exempt from the above, as they are shipped internally within the U.S. for U.S. buyers.
Please refer to our general terms of service as well as our VAT and Import Taxes/Duties information page.
Open Source Hardware
Most of my own projects are released as open source hardware. This means that you can get the source files, make any changes you like, and have them produced yourself. If you decide to publish your changes, I only ask that you do so under the same open source license, and that you credit me with a link to this website.
In addition to my own projects, you will find several other open source projects below.
Open Source Retro Products
Categories
For the full list of categories, please use the menu in the top of the page.
Commodore systems
Various systems, cables and electronics
About AutumnHippo
The AutumnHippo store is run as a hobby project by me -- I'm Thomas, and I am a maker and retro computer fan, based in Denmark.
In my store I offer my own open sourced hardware projects in physical form, as well as a few of other people's open sourced hardware projects. Whether my own or others', my main incentive is to provide an easy way to acquire a retro product, for those who are not comfortable with sending off PCB gerber files to an overseas board manufacturer and sourcing various electronic parts, often from multiple suppliers and vendors -- and for those who just need the product pre-assembled, and working out-of-the-box without any soldering hassle. Oh, and then I sell a few retro related bits and bobs, such as replacement joystick cables, etc., just for good measure.
I try to charge a fair price for everything I sell, and I only charge my actual shipping costs. I do add a bit on top of the product prices compared to the combined price of the parts, in order to be able to pay the bills to Shopify, Paypal, the bank, etc., and for sales to the EU, I need to charge sales tax (VAT) on top as well.